Load packages

If you are using the package for the first time, you will first have to install it.

# install.packages("survival") 

If you have already downloaded this package in the current version of R, you will only have to load the package.

library(survival)
## Warning: package 'survival' was built under R version 4.0.4

Get the data

Load a data set from a package.
You can use the double colon symbol (:), to return the pbc and pbcseq objects from the package survival. We store these data sets to new objects with the names pbc and pbcseq.

pbc <- survival::pbc
pbcseq <- survival::pbcseq

Remember that for indexing/subsetting we need to use the square brackets.

Vector indexing

Select the 3rd element from vector age of the pbc data set.

pbc$age[3]
## [1] 70.07255

Select the sex of the 10th patient of the pbc data set.

pbc$sex[10]
## [1] f
## Levels: m f

Remove the 1st element from the id vector of the pbc data set.

pbc$id[-1]
##   [1]   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19
##  [19]  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37
##  [37]  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55
##  [55]  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73
##  [73]  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91
##  [91]  92  93  94  95  96  97  98  99 100 101 102 103 104 105 106 107 108 109
## [109] 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127
## [127] 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145
## [145] 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163
## [163] 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181
## [181] 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199
## [199] 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217
## [217] 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235
## [235] 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253
## [253] 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271
## [271] 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289
## [289] 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307
## [307] 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325
## [325] 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343
## [343] 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361
## [361] 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379
## [379] 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397
## [397] 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415
## [415] 416 417 418

From the vector age of the pbc data set, select patients that are younger than 30.

pbc$age[pbc$age < 30]
## [1] 28.88433 29.55510 26.27789

From the vector age of the pbc data set, select only female patients.

pbc$age[pbc$sex == "f"]
##   [1] 58.76523 56.44627 54.74059 38.10541 66.25873 55.53457 53.05681 42.50787
##   [9] 70.55989 53.71389 59.13758 45.68925 64.64613 40.44353 52.18344 53.93018
##  [17] 49.56057 59.95346 56.27652 55.96715 45.07324 52.02464 54.43943 44.94730
##  [25] 63.87680 41.38535 41.55236 53.99589 51.28268 52.06023 48.61875 56.41068
##  [33] 61.72758 36.62697 55.39220 46.66940 33.63450 33.69473 48.87064 37.58248
##  [41] 41.79329 45.79877 47.42779 61.15264 53.50856 52.08761 67.40862 39.19781
##  [49] 33.61807 53.57153 40.39425 58.38193 60.70637 46.62834 62.90760 40.20260
##  [57] 51.28816 32.61328 49.33881 56.39973 48.84600 32.49281 38.49418 51.92060
##  [65] 43.51814 51.94251 49.82615 47.94524 46.51608 63.26352 67.31006 56.01369
##  [73] 55.83025 47.21697 52.75838 37.27858 41.39357 52.44353 45.60712 76.70910
##  [81] 36.53388 53.91650 46.39014 48.84600 28.88433 44.95003 56.56947 48.96372
##  [89] 43.01711 34.03970 68.50924 62.52156 50.35729 44.06297 38.91034 41.15264
##  [97] 55.45791 51.23340 42.63929 61.07050 49.65640 48.85421 54.25599 55.43600
## [105] 45.82067 47.18138 53.59890 44.10404 41.94935 63.61396 44.22724 62.00137
## [113] 40.55305 42.33539 42.96783 55.96167 62.86105 46.76249 54.07529 47.03628
## [121] 55.72621 46.10267 52.28747 51.20055 33.86448 75.01164 30.86379 34.98700
## [129] 55.04175 49.60438 43.55647 59.40862 48.75838 36.49281 57.37166 42.74333
## [137] 58.81725 53.49760 43.41410 41.35524 47.75359 35.49076 48.66256 52.66804
## [145] 49.86995 30.27515 55.56742 52.15332 41.60986 55.45243 70.00411 43.94251
## [153] 42.56810 44.56947 56.94456 40.26010 37.60712 48.36140 70.83641 35.79192
## [161] 62.62286 50.64750 54.52704 52.69268 52.72005 56.77207 44.39699 29.55510
## [169] 57.04038 44.62697 35.79740 40.71732 32.23272 41.09240 61.63997 37.05681
## [177] 62.57906 48.97741 61.99042 72.77207 61.29500 52.62423 52.91444 47.26352
## [185] 50.20397 69.34702 41.16906 59.16496 36.07940 34.59548 42.71321 63.63039
## [193] 56.62971 46.26420 61.24298 38.62012 38.77070 56.69541 36.92266 62.41478
## [201] 34.60917 58.33539 50.18207 42.68583 34.37919 33.18275 38.38193 59.76181
## [209] 66.41205 46.78987 56.07940 41.37440 64.57221 67.48802 44.82957 45.77139
## [217] 32.95003 41.22108 55.41684 47.98084 40.79124 56.97467 68.46270 39.85763
## [225] 35.31006 31.44422 58.26420 51.48802 59.96988 52.36413 42.78713 34.87474
## [233] 44.13963 46.38193 56.30938 70.90760 55.39493 45.08419 26.27789 50.47228
## [241] 38.39836 47.41958 47.98084 38.31622 50.10815 35.08830 32.50376 56.15332
## [249] 46.15469 65.88364 33.94387 62.86105 48.56400 46.34908 38.85284 58.64750
## [257] 48.93634 65.98494 40.90075 57.19644 31.38125 52.72553 38.09172 58.17112
## [265] 45.21013 37.79877 60.65982 35.53457 43.06639 56.39151 30.57358 61.18275
## [273] 58.29979 62.33265 37.99863 33.15264 60.00000 64.99932 54.00137 75.00068
## [281] 62.00137 43.00068 46.00137 44.00000 64.00000 40.00000 63.00068 34.00137
## [289] 52.00000 48.99932 54.00137 63.00068 46.00137 52.99932 56.00000 56.00000
## [297] 55.00068 64.99932 56.00000 47.00068 60.00000 52.99932 54.00137 50.00137
## [305] 48.00000 36.00000 48.00000 70.00137 51.00068 54.00137 48.00000 66.00137
## [313] 52.99932 62.00137 59.00068 39.00068 67.00068 58.00137 64.00000 46.00137
## [321] 64.00000 40.99932 48.99932 44.00000 59.00068 63.00068 60.99932 64.00000
## [329] 48.99932 42.00137 50.00137 51.00068 36.99932 62.00137 51.00068 52.00000
## [337] 32.99932 60.00000 63.00068 32.99932 51.00068 36.99932 59.00068 55.00068
## [345] 48.99932 40.00000 67.00068 40.99932 68.99932 52.00000 56.99932 36.00000
## [353] 50.00137 64.00000 62.00137 42.00137 44.00000 68.99932 52.00000 66.00137
## [361] 40.00000 52.00000 46.00137 51.00068 43.00068 39.00068 51.00068 67.00068
## [369] 35.00068 67.00068 39.00068 56.99932 58.00137 52.99932

Matrix and data frame indexing

Select the 3rd column of the pbc data set. To do so we type 3 in the second index which represents the columns. 

pbc[, 3]
##   [1] 2 0 2 2 1 2 0 2 2 2 2 2 0 2 2 0 2 2 0 2 0 2 2 2 0 2 2 2 0 2 2 0 2 0 2 0 2
##  [38] 2 2 0 2 0 0 2 0 2 0 0 2 2 2 2 2 2 2 2 2 0 2 0 0 2 2 2 0 2 2 0 2 0 0 0 0 2
##  [75] 2 2 2 2 0 2 2 2 0 0 2 2 2 0 2 2 2 2 0 2 2 0 2 0 0 2 0 0 2 2 1 2 0 2 0 2 1
## [112] 2 2 2 0 0 2 2 2 1 2 0 2 0 1 2 0 2 0 2 2 0 2 0 0 0 0 2 0 0 0 2 2 2 0 0 0 2
## [149] 2 0 0 2 0 2 0 2 0 1 2 0 0 2 2 2 2 0 2 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 1 2 0
## [186] 2 2 0 0 0 2 0 2 0 0 0 0 0 0 0 0 0 0 2 2 0 0 2 0 0 0 0 0 2 2 0 2 0 0 2 0 2
## [223] 2 0 0 0 2 0 2 0 2 0 0 0 0 0 0 0 2 0 1 0 2 2 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0
## [260] 0 0 0 1 1 1 0 2 2 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 1 2 0 1 0 0 0 1 0
## [297] 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 0 0 2 0 0 2 0 0 0 0 0 2 2 2 2 2 2
## [334] 2 0 0 2 2 0 0 2 0 2 0 1 2 2 0 0 2 2 0 0 2 0 2 0 0 0 2 1 1 0 2 0 2 0 2 2 2
## [371] 2 0 0 0 1 2 0 2 2 1 0 2 1 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 0 2 0
## [408] 0 0 0 0 0 0 2 0 0 0 0

Different ways exist to obtain that. As shown below, we can also use double square bracket with a single index.

pbc[[3]]
##   [1] 2 0 2 2 1 2 0 2 2 2 2 2 0 2 2 0 2 2 0 2 0 2 2 2 0 2 2 2 0 2 2 0 2 0 2 0 2
##  [38] 2 2 0 2 0 0 2 0 2 0 0 2 2 2 2 2 2 2 2 2 0 2 0 0 2 2 2 0 2 2 0 2 0 0 0 0 2
##  [75] 2 2 2 2 0 2 2 2 0 0 2 2 2 0 2 2 2 2 0 2 2 0 2 0 0 2 0 0 2 2 1 2 0 2 0 2 1
## [112] 2 2 2 0 0 2 2 2 1 2 0 2 0 1 2 0 2 0 2 2 0 2 0 0 0 0 2 0 0 0 2 2 2 0 0 0 2
## [149] 2 0 0 2 0 2 0 2 0 1 2 0 0 2 2 2 2 0 2 0 2 0 0 0 0 0 0 2 0 0 0 0 0 0 1 2 0
## [186] 2 2 0 0 0 2 0 2 0 0 0 0 0 0 0 0 0 0 2 2 0 0 2 0 0 0 0 0 2 2 0 2 0 0 2 0 2
## [223] 2 0 0 0 2 0 2 0 2 0 0 0 0 0 0 0 2 0 1 0 2 2 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0
## [260] 0 0 0 1 1 1 0 2 2 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 1 2 0 1 0 0 0 1 0
## [297] 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 2 0 0 2 0 0 2 0 0 0 0 0 2 2 2 2 2 2
## [334] 2 0 0 2 2 0 0 2 0 2 0 1 2 2 0 0 2 2 0 0 2 0 2 0 0 0 2 1 1 0 2 0 2 0 2 2 2
## [371] 2 0 0 0 1 2 0 2 2 1 0 2 1 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 0 2 0
## [408] 0 0 0 0 0 0 2 0 0 0 0

Select the baseline details of the 5th patient of the pbc data set. In that case we only need to specify the row index.

pbc[pbc$id == 5, ]
##   id time status trt      age sex ascites hepato spiders edema bili chol
## 5  5 1504      1   2 38.10541   f       0      1       1     0  3.4  279
##   albumin copper alk.phos    ast trig platelet protime stage
## 5    3.53    143      671 113.15   72      136    10.9     3

Select the serum bilirubin for all males of the pbc data set. In that case we need to specify the row and column index.

pbc[pbc$sex == "m", "bili"]
##  [1] 1.4 0.8 0.6 2.1 1.9 6.0 1.8 0.7 0.6 1.4 7.2 1.6 2.0 1.8 2.3 3.2 3.5 1.3 0.6
## [20] 1.5 7.3 3.0 2.3 2.4 2.5 4.0 0.9 0.9 2.3 7.1 5.6 4.0 8.6 6.6 2.4 1.2 1.3 3.5
## [39] 0.9 9.5 1.7 1.7 3.0 1.1

Different ways exist to obtain that. We can take the vector bili and then look for male patients.

pbc$bili[pbc$sex == "m"]
##  [1] 1.4 0.8 0.6 2.1 1.9 6.0 1.8 0.7 0.6 1.4 7.2 1.6 2.0 1.8 2.3 3.2 3.5 1.3 0.6
## [20] 1.5 7.3 3.0 2.3 2.4 2.5 4.0 0.9 0.9 2.3 7.1 5.6 4.0 8.6 6.6 2.4 1.2 1.3 3.5
## [39] 0.9 9.5 1.7 1.7 3.0 1.1

Select the age for male patients or patients that have serum bilirubin more than 5 of the pbc data set. Here we want one of the two conditions to be satisfied, therefore we use the symbol |.

pbc[pbc$sex == "m" | pbc$bili > 5, "age"]
##   [1] 58.76523 70.07255 70.55989 56.22177 53.93018 59.95346 64.18891 55.96715
##   [9] 44.52019 52.02464 54.43943 44.94730 61.72758 33.63450 45.79877 49.13621
##  [17] 50.54073 65.76318 44.56947 43.89870 46.62834 46.45311 49.33881 51.92060
##  [25] 43.51814 51.94251 49.82615 47.94524 67.41136 63.26352 33.47570 46.39014
##  [33] 71.89322 48.46817 51.46886 41.15264 51.23340 52.82683 49.65640 35.15127
##  [41] 67.90691 45.82067 52.88980 41.94935 44.22724 62.64476 51.24983 52.28747
##  [49] 30.86379 61.80424 69.94114 69.37714 59.40862 45.76044 43.41410 53.30595
##  [57] 41.35524 60.95825 37.60712 35.79192 52.69268 56.77207 49.76318 41.16906
##  [65] 36.07940 61.24298 58.95140 33.18275 67.48802 41.22108 78.43943 74.52430
##  [73] 70.90760 55.39493 32.50376 65.88364 58.64750 48.93634 67.57290 50.24504
##  [81] 57.19644 60.53662 35.35113 55.98631 58.17112 33.15264 60.99932 54.00137
##  [89] 52.99932 56.00000 47.00068 52.99932 54.00137 48.00000 36.00000 52.00000
##  [97] 66.00137 40.99932 48.99932 48.99932 50.00137 51.00068 44.00000 40.99932
## [105] 51.00068 54.00137 48.99932 68.00000 62.00137 42.00137 54.00137

Different ways exist to obtain that. We can take the vector age and from there look for male patients or patients that have serum bilirubin more than 5.

pbc$age[pbc$sex == "m" | pbc$bili > 5]
##   [1] 58.76523 70.07255 70.55989 56.22177 53.93018 59.95346 64.18891 55.96715
##   [9] 44.52019 52.02464 54.43943 44.94730 61.72758 33.63450 45.79877 49.13621
##  [17] 50.54073 65.76318 44.56947 43.89870 46.62834 46.45311 49.33881 51.92060
##  [25] 43.51814 51.94251 49.82615 47.94524 67.41136 63.26352 33.47570 46.39014
##  [33] 71.89322 48.46817 51.46886 41.15264 51.23340 52.82683 49.65640 35.15127
##  [41] 67.90691 45.82067 52.88980 41.94935 44.22724 62.64476 51.24983 52.28747
##  [49] 30.86379 61.80424 69.94114 69.37714 59.40862 45.76044 43.41410 53.30595
##  [57] 41.35524 60.95825 37.60712 35.79192 52.69268 56.77207 49.76318 41.16906
##  [65] 36.07940 61.24298 58.95140 33.18275 67.48802 41.22108 78.43943 74.52430
##  [73] 70.90760 55.39493 32.50376 65.88364 58.64750 48.93634 67.57290 50.24504
##  [81] 57.19644 60.53662 35.35113 55.98631 58.17112 33.15264 60.99932 54.00137
##  [89] 52.99932 56.00000 47.00068 52.99932 54.00137 48.00000 36.00000 52.00000
##  [97] 66.00137 40.99932 48.99932 48.99932 50.00137 51.00068 44.00000 40.99932
## [105] 51.00068 54.00137 48.99932 68.00000 62.00137 42.00137 54.00137

Select the first measurement per patient using the pbcseq data set.
Tip: use the function duplicated().
First think of whether you want to select rows or columns. In that case we want to select rows therefore the first index should be specified.
The code duplicated(pbcseq[, "id"]) will return a logical vector indicating whether the element is duplicated or not.
We want the opposite (not dublicated). In R we can obtain the opposite by using the symbol !.

pbcseq[!duplicated(pbcseq[, "id"]), ]
##       id futime status trt      age sex day ascites hepato spiders edema bili
## 1      1    400      2   1 58.76523   f   0       1      1       1   1.0 14.5
## 3      2   5169      0   1 56.44627   f   0       0      1       1   0.0  1.1
## 12     3   1012      2   1 70.07255   m   0       0      0       0   0.5  1.4
## 16     4   1925      2   1 54.74059   f   0       0      1       1   0.5  1.8
## 23     5   1505      1   0 38.10541   f   0       0      1       1   0.0  3.4
## 29     6   2503      2   0 66.25873   f   0       0      1       0   0.0  0.8
## 35     7   2501      0   0 55.53457   f   0       0      1       0   0.0  1.0
## 42     8   2466      2   0 53.05681   f   0       0      0       0   0.0  0.3
## 50     9   2400      2   1 42.50787   f   0       0      0       1   0.0  3.2
## 57    10     51      2   0 70.55989   f   0       1      0       1   1.0 12.6
## 58    11   3762      2   0 53.71389   f   0       0      1       1   0.0  1.4
## 70    12    304      2   0 59.13758   f   0       0      0       1   0.0  3.6
## 72    13   4247      0   0 45.68925   f   0       0      0       0   0.0  0.7
## 84    14   1217      2   0 56.22177   m   0       1      1       0   1.0  0.8
## 91    15   3584      2   1 64.64613   f   0       0      0       0   0.0  0.8
## 102   16   4345      0   0 40.44353   f   0       0      0       0   0.0  0.7
## 115   17    769      2   0 52.18344   f   0       0      1       0   0.0  2.7
## 118   18    132      2   1 53.93018   f   0       0      1       1   1.0 11.4
## 119   19   4901      0   1 49.56057   f   0       0      1       0   0.5  0.7
## 134   20   1356      2   0 59.95346   f   0       0      1       0   0.0  5.1
## 138   21   3657      2   0 64.18891   m   0       0      1       1   0.0  0.6
## 150   22    673      2   1 56.27652   f   0       0      0       1   0.0  3.4
## 153   23    264      2   0 55.96715   f   0       1      1       1   1.0 17.4
## 155   24   4079      2   1 44.52019   m   0       0      1       0   0.0  2.1
## 168   25   4796      0   0 45.07324   f   0       0      0       0   0.0  0.7
## 180   26   1444      2   0 52.02464   f   0       0      1       1   0.0  5.2
## 186   27     77      2   0 54.43943   f   0       1      1       1   0.5 21.6
## 187   28    549      2   0 44.94730   f   0       1      1       1   1.0 17.2
## 190   29   5074      2   0 63.87680   f   0       0      0       0   0.0  0.7
## 200   30    321      2   0 41.38535   f   0       0      1       1   0.0  3.6
## 203   31   3839      2   0 41.55236   f   0       0      1       0   0.0  4.7
## 215   32   5192      0   0 53.99589   f   0       0      1       0   0.5  1.8
## 231   33   3170      2   0 51.28268   f   0       0      0       0   0.0  0.8
## 241   34   4602      0   1 52.06023   f   0       0      0       0   0.5  0.8
## 255   35   2847      2   0 48.61875   f   0       0      0       0   0.0  1.2
## 259   36   4281      0   0 56.41068   f   0       0      0       0   0.0  0.3
## 270   37    223      2   1 61.72758   f   0       1      1       0   1.0  7.1
## 272   38   3244      2   0 36.62697   f   0       0      1       1   0.0  3.3
## 282   39   2297      2   1 55.39220   f   0       0      1       0   0.0  0.7
## 290   40   5136      0   1 46.66940   f   0       0      0       0   0.0  1.3
## 305   41   1350      2   1 33.63450   f   0       0      1       0   0.0  6.8
## 309   42   5122      0   0 33.69473   f   0       0      1       1   0.0  2.1
## 325   43   5225      0   1 48.87064   f   0       0      0       0   0.0  1.1
## 340   44   3428      2   0 37.58248   f   0       0      1       1   1.0  3.3
## 351   45   4694      0   0 41.79329   f   0       0      0       0   0.0  0.6
## 360   46   2256      2   1 45.79877   f   0       0      1       0   0.0  5.7
## 368   47   3245      0   0 47.42779   f   0       0      0       0   0.0  0.5
## 375   48   5096      0   0 49.13621   m   0       0      0       0   0.0  1.9
## 384   49    708      2   0 61.15264   f   0       0      1       0   0.0  0.8
## 388   50   2598      2   1 53.50856   f   0       0      1       0   0.0  1.1
## 397   51   3853      2   0 52.08761   f   0       0      0       0   0.0  0.8
## 407   52   2386      2   1 50.54073   m   0       0      0       0   0.0  6.0
## 416   53   1000      2   1 67.40862   f   0       0      1       0   0.0  2.6
## 419   54   1434      2   1 39.19781   f   0       1      1       1   1.0  1.3
## 424   55   1360      2   1 65.76318   m   0       0      0       0   0.0  1.8
## 430   56   1847      2   0 33.61807   f   0       0      1       1   0.0  1.1
## 436   57   3282      2   1 53.57153   f   0       0      1       0   0.5  2.3
## 447   58   5128      0   1 44.56947   m   0       0      0       0   0.0  0.7
## 463   59   2224      2   1 40.39425   f   0       0      1       1   0.0  0.8
## 470   60   5034      0   1 58.38193   f   0       0      0       0   0.0  0.9
## 483   61   4925      0   0 43.89870   m   0       0      0       0   0.0  0.6
## 497   62   3090      2   0 60.70637   f   0       1      0       0   0.0  1.3
## 507   63    859      2   0 46.62834   f   0       0      0       1   1.0 22.5
## 510   64   1487      2   0 62.90760   f   0       0      1       0   0.0  2.1
## 516   65   4842      0   1 40.20260   f   0       0      0       0   0.0  1.2
## 522   66   4191      2   1 46.45311   m   0       0      1       0   0.0  1.4
## 535   67   2769      2   0 51.28816   f   0       0      0       0   0.0  1.1
## 545   68   4708      0   1 32.61328   f   0       0      0       0   0.0  0.7
## 559   69   1170      2   1 49.33881   f   0       0      1       1   0.5 20.0
## 563   70   3683      2   1 56.39973   f   0       0      0       0   0.5  0.6
## 576   71   4865      0   0 48.84600   f   0       0      1       0   0.0  1.2
## 587   72   4853      0   0 32.49281   f   0       0      0       0   0.0  0.5
## 593   73   4859      0   0 38.49418   f   0       0      0       0   0.0  0.7
## 608   74   1827      2   1 51.92060   f   0       0      1       1   0.0  8.4
## 612   75   1191      2   1 43.51814   f   0       1      1       1   0.5 17.1
## 617   76     71      2   1 51.94251   f   0       0      1       1   1.0 12.2
## 618   77    326      2   0 49.82615   f   0       0      1       1   0.5  6.6
## 620   78   1690      2   1 47.94524   f   0       0      1       0   0.0  6.3
## 624   79   4376      0   1 46.51608   f   0       0      1       0   0.0  0.8
## 635   80    890      2   0 67.41136   m   0       0      1       0   0.0  7.2
## 639   81   2540      2   1 63.26352   f   0       0      1       1   0.0  2.0
## 649   82   3574      2   1 67.31006   f   0       0      0       0   0.0  4.5
## 659   83   4719      0   1 56.01369   f   0       0      1       0   0.5  1.3
## 674   84   4701      0   0 55.83025   f   0       0      0       0   0.0  0.4
## 677   85   3358      2   0 47.21697   f   0       0      1       0   0.0  2.1
## 688   86   1657      2   1 52.75838   f   0       0      1       1   0.0  5.0
## 689   87    198      2   1 37.27858   f   0       0      0       0   0.0  1.1
## 691   88   3076      2   0 41.39357   f   0       0      0       0   0.5  0.6
## 695   89   1741      2   1 52.44353   f   0       0      1       0   0.0  2.0
## 699   90   2689      2   1 33.47570   m   0       0      0       0   0.0  1.6
## 708   91    460      2   0 45.60712   f   0       0      1       1   0.5  5.0
## 711   92    389      2   1 76.70910   f   0       1      0       0   1.0  1.4
## 712   93   4583      0   1 36.53388   f   0       0      0       0   0.0  1.3
## 727   94    750      2   1 53.91650   f   0       0      1       1   0.0  3.2
## 730   95    137      2   0 46.39014   f   0       1      1       1   1.0 17.4
## 731   96   4520      0   1 48.84600   f   0       0      0       0   0.0  1.0
## 745   97    620      2   0 71.89322   m   0       0      1       0   0.5  2.0
## 749   98   4492      0   1 28.88433   f   0       0      0       0   0.0  1.0
## 763   99   4489      0   0 48.46817   m   0       0      0       0   0.0  1.8
## 776  100    552      2   0 51.46886   m   0       0      1       0   0.0  2.3
## 780  101   4250      0   0 44.95003   f   0       0      0       0   0.0  0.9
## 792  102   3770      0   1 56.56947   f   0       0      0       0   0.0  0.9
## 804  103    110      2   0 48.96372   f   0       1      1       1   1.0  2.5
## 805  104   3086      2   1 43.01711   f   0       0      0       0   0.0  1.1
## 815  105   3092      1   0 34.03970   f   0       0      1       0   0.0  1.1
## 825  106   3222      2   1 68.50924   f   0       1      1       0   0.0  2.1
## 830  107   4058      0   0 62.52156   f   0       0      0       0   0.0  0.6
## 841  108   2583      2   1 50.35729   f   0       0      0       0   0.0  0.4
## 849  109   3173      0   0 44.06297   f   0       0      0       0   0.0  0.5
## 859  110   2044      2   1 38.91034   f   0       0      1       1   0.0  1.9
## 866  111   2350      1   1 41.15264   f   0       0      0       0   0.0  5.5
## 874  112   3445      2   0 55.45791   f   0       0      1       1   0.0  2.0
## 885  113    951      2   1 51.23340   f   0       0      1       1   0.0  6.7
## 890  114   3395      2   0 52.82683   m   0       0      0       0   0.0  3.2
## 901  115   4091      0   0 42.63929   f   0       0      0       1   0.0  0.7
## 913  116   4015      0   1 61.07050   f   0       0      0       1   0.5  3.0
## 924  117   1083      2   1 49.65640   f   0       0      1       1   0.0  6.5
## 929  118   2288      2   1 48.85421   f   0       0      1       0   0.5  3.5
## 936  119    515      2   1 54.25599   f   0       0      0       1   0.0  0.6
## 938  120   2033      1   1 35.15127   m   0       0      0       0   0.0  3.5
## 946  121    191      2   0 67.90691   m   0       1      1       0   1.0  1.3
## 947  122   3966      0   1 55.43600   f   0       0      0       0   0.0  0.6
## 957  123    971      2   1 45.82067   f   0       0      1       1   1.0  5.1
## 959  124   3903      2   1 52.88980   m   0       0      1       0   0.0  0.6
## 960  125   2468      1   0 47.18138   f   0       0      1       0   0.0  1.3
## 969  126    824      2   1 53.59890   f   0       1      1       1   0.0  1.2
## 974  127   3924      0   0 44.10404   f   0       0      0       0   0.0  0.5
## 985  128   1037      2   1 41.94935   f   0       0      1       1   0.0 16.2
## 990  129   3908      0   1 63.61396   f   0       0      1       0   0.0  0.9
## 1002 130   1411      2   0 44.22724   f   0       0      1       1   0.0 17.4
## 1008 131    850      2   0 62.00137   f   0       0      1       1   0.0  2.8
## 1012 132   3613      0   1 40.55305   f   0       0      0       0   0.0  1.9
## 1018 133   2796      2   0 62.64476   m   0       0      0       0   0.0  1.5
## 1027 134   3818      0   0 42.33539   f   0       0      0       0   0.0  0.7
## 1039 135   3819      0   1 42.96783   f   0       0      0       0   0.0  0.4
## 1049 136   3767      0   1 55.96167   f   0       0      0       0   0.0  0.8
## 1058 137   3659      0   1 62.86105   f   0       0      0       0   0.0  1.1
## 1070 138   1297      2   1 51.24983   m   0       0      1       0   0.0  7.3
## 1076 139   2357      1   0 46.76249   f   0       0      1       0   0.0  1.1
## 1082 140   3728      0   1 54.07529   f   0       0      1       0   0.0  1.1
## 1094 141   3719      0   1 47.03628   f   0       0      0       0   0.0  0.9
## 1097 142   2419      2   0 55.72621   f   0       0      1       0   0.0  1.0
## 1106 143    786      2   0 46.10267   f   0       0      1       0   0.5  2.9
## 1109 144    945      2   0 52.28747   f   0       0      1       0   0.5 28.0
## 1113 145   3645      0   0 51.20055   f   0       0      0       1   0.0  0.7
## 1117 146   3086      2   0 33.86448   f   0       0      0       0   0.5  1.2
## 1124 147   3382      2   1 75.01164   f   0       0      0       0   0.5  1.2
## 1129 148   1427      2   0 30.86379   f   0       0      1       0   0.0  7.2
## 1135 149    762      2   1 61.80424   m   0       0      1       1   0.5  3.0
## 1138 150   3560      0   0 34.98700   f   0       0      0       1   0.0  1.0
## 1147 151   3539      0   1 55.04175   f   0       0      0       0   0.0  0.9
## 1158 152   1152      2   1 69.94114   m   0       0      1       0   0.0  2.3
## 1161 153   3532      0   1 49.60438   f   0       0      0       0   0.0  0.5
## 1171 154    140      2   1 69.37714   m   0       0      0       1   1.0  2.4
## 1172 155   3516      0   0 43.55647   f   0       0      1       1   0.5  0.6
## 1175 156    853      2   0 59.40862   f   0       0      1       0   0.0 25.5
## 1179 157   3504      0   0 48.75838   f   0       0      0       0   0.0  0.6
## 1190 158   2475      1   1 36.49281   f   0       0      0       0   0.0  3.4
## 1199 159   1536      2   0 45.76044   m   0       0      0       0   0.0  2.5
## 1203 160   3441      0   0 57.37166   f   0       0      0       0   0.5  0.6
## 1211 161   3466      0   0 42.74333   f   0       0      0       0   0.0  2.3
## 1222 162    186      2   0 58.81725   f   0       0      1       1   0.0  3.2
## 1223 163   2055      2   1 53.49760   f   0       0      0       0   0.0  0.3
## 1226 164    276      2   0 43.41410   f   0       0      1       1   0.5  8.5
## 1227 165   1076      2   1 53.30595   m   0       0      1       0   0.0  4.0
## 1232 166   3390      0   0 41.35524   f   0       0      1       0   0.0  5.7
## 1240 167   1684      2   1 60.95825   m   0       0      1       0   0.0  0.9
## 1246 168   3384      0   0 47.75359   f   0       0      1       0   0.0  0.4
## 1256 169   1212      2   0 35.49076   f   0       0      0       0   0.0  1.3
## 1261 170   3361      0   1 48.66256   f   0       0      0       0   0.0  1.2
## 1262 171   3243      0   1 52.66804   f   0       0      0       0   0.0  0.5
## 1272 172   2970      0   0 49.86995   f   0       0      0       1   0.0  1.3
## 1279 173   3326      0   1 30.27515   f   0       0      1       1   0.0  3.0
## 1288 174   3313      0   1 55.56742   f   0       0      0       0   0.0  0.5
## 1298 175   3293      0   0 52.15332   f   0       0      0       0   0.5  0.8
## 1308 176   1492      2   1 41.60986   f   0       0      1       1   0.5  3.2
## 1314 177   3278      0   0 55.45243   f   0       0      0       0   0.0  0.9
## 1315 178   3249      0   1 70.00411   f   0       0      0       0   0.0  0.6
## 1321 179   3242      0   0 43.94251   f   0       0      1       0   0.0  1.8
## 1324 180   3232      0   0 42.56810   f   0       0      0       0   0.0  4.7
## 1334 181   3225      0   1 44.56947   f   0       0      1       1   0.0  1.4
## 1335 182   3224      0   1 56.94456   f   0       0      1       0   0.0  0.6
## 1340 183   2241      1   0 40.26010   f   0       0      0       0   0.0  0.5
## 1348 184    974      2   0 37.60712   f   0       0      1       0   0.0 11.0
## 1353 185   2882      2   1 48.36140   f   0       0      0       0   0.0  0.8
## 1358 186   1576      2   1 70.83641   f   0       0      0       1   0.5  2.0
## 1362 187    733      2   0 35.79192   f   0       0      1       0   0.0 14.0
## 1366 188   2635      0   1 62.62286   f   0       0      1       0   0.0  0.7
## 1374 189   3125      0   0 50.64750   f   0       0      1       0   0.0  1.3
## 1379 190   3173      0   1 54.52704   f   0       0      0       1   0.0  2.3
## 1383 191    216      2   0 52.69268   f   0       1      1       1   0.0 24.5
## 1384 192   3112      0   1 52.72005   f   0       0      1       0   0.0  0.9
## 1394 193    797      2   0 56.77207   f   0       0      0       0   0.0 10.8
## 1398 194   3118      0   1 44.39699   f   0       0      0       0   0.0  1.5
## 1403 195   2999      0   1 29.55510   f   0       0      1       0   0.0  3.7
## 1404 196   2555      2   1 57.04038   f   0       0      1       1   0.0  1.4
## 1412 197   3034      0   1 44.62697   f   0       0      0       0   0.0  0.6
## 1421 198   3025      0   0 35.79740   f   0       0      0       1   0.0  0.7
## 1429 199   2991      0   1 40.71732   f   0       0      0       0   0.0  2.1
## 1432 200   2932      1   0 32.23272   f   0       0      0       1   0.0  4.7
## 1443 201   2963      0   0 41.09240   f   0       0      1       0   0.0  0.6
## 1453 202   2941      0   1 61.63997   f   0       0      0       0   0.0  0.5
## 1455 203   2890      0   0 37.05681   f   0       0      1       0   0.0  0.5
## 1464 204   2090      2   0 62.57906   f   0       0      0       0   0.0  0.7
## 1472 205   2081      2   1 48.97741   f   0       1      0       0   0.0  2.5
## 1477 206   2924      0   1 61.99042   f   0       0      0       0   0.0  0.6
## 1485 207   2840      0   1 72.77207   f   0       0      0       0   0.5  0.6
## 1492 208    904      2   1 61.29500   f   0       0      1       0   0.0  3.9
## 1495 209   2888      0   0 52.62423   f   0       0      1       1   0.5  0.7
## 1497 210   2893      0   0 49.76318   m   0       0      1       0   0.0  0.9
## 1507 211   2865      0   0 52.91444   f   0       0      0       0   0.5  1.3
## 1515 212   2845      0   0 47.26352   f   0       0      0       0   0.5  1.2
## 1521 213   2189      0   1 50.20397   f   0       0      0       1   0.0  0.5
## 1523 214   1786      2   0 69.34702   f   0       0      1       0   0.0  0.9
## 1527 215   1080      2   0 41.16906   f   0       0      0       0   0.0  5.9
## 1531 216   2336      0   1 59.16496   f   0       0      0       0   0.0  0.5
## 1538 217    790      2   0 36.07940   f   0       0      1       0   0.0 11.4
## 1542 218   2839      0   1 34.59548   f   0       0      0       0   0.0  0.5
## 1552 219   2826      0   0 42.71321   f   0       0      0       0   0.5  1.6
## 1558 220   1235      2   1 63.63039   f   0       0      0       1   0.0  3.8
## 1563 221   2719      0   0 56.62971   f   0       0      1       0   0.0  0.9
## 1571 222    597      2   0 46.26420   f   0       0      1       0   0.0  4.5
## 1575 223    334      2   1 61.24298   f   0       1      1       0   1.0 14.1
## 1576 224   2614      0   1 38.62012   f   0       0      0       0   0.0  1.0
## 1584 225   2691      0   1 38.77070   f   0       0      0       0   0.0  0.7
## 1593 226   2647      0   0 56.69541   f   0       0      1       0   0.0  0.5
## 1602 227    999      2   1 58.95140   m   0       0      0       0   0.0  2.3
## 1606 228   2636      0   0 36.92266   f   0       0      0       0   0.0  0.7
## 1610 229    348      2   1 62.41478   f   0       1      1       0   0.5  4.5
## 1613 230   2648      0   0 34.60917   f   0       0      1       1   0.0  3.3
## 1617 231   1165      2   0 58.33539   f   0       0      1       1   0.0  3.4
## 1621 232   2620      0   1 50.18207   f   0       0      1       0   0.0  0.4
## 1625 233   2601      0   1 42.68583   f   0       0      1       1   0.0  0.9
## 1626 234   2445      0   0 34.37919   f   0       0      0       0   0.5  0.9
## 1628 235   2302      1   0 33.18275   f   0       0      1       0   0.0 13.0
## 1630 236   2577      0   1 38.38193   f   0       0      1       1   0.0  1.5
## 1632 237   1947      1   1 59.76181   f   0       0      1       0   0.0  1.6
## 1634 238   1874      2   0 66.41205   f   0       0      0       0   0.5  0.6
## 1637 239    694      2   1 46.78987   f   0       0      1       1   0.0  0.8
## 1640 240   2500      0   1 56.07940   f   0       0      0       0   0.0  0.4
## 1648 241    837      1   0 41.37440   f   0       0      1       1   0.0  4.4
## 1652 242   2128      2   1 64.57221   f   0       0      1       0   0.0  1.9
## 1660 243    930      2   0 67.48802   f   0       0      1       0   0.0  8.0
## 1662 244   1690      2   1 44.82957   f   0       0      0       1   0.0  3.9
## 1666 245   2459      0   0 45.77139   f   0       0      1       0   0.5  0.6
## 1668 246   1435      1   1 32.95003   f   0       0      1       0   0.0  2.1
## 1674 247    940      1   1 41.22108   f   0       0      1       0   0.0  6.1
## 1678 248   2454      0   0 55.41684   f   0       0      1       0   0.0  0.8
## 1686 249   2452      0   1 47.98084   f   0       0      0       1   0.0  1.3
## 1689 250   2327      1   0 40.79124   f   0       0      1       0   0.0  0.6
## 1691 251   2307      0   1 56.97467   f   0       0      0       0   0.0  0.5
## 1692 252   2439      0   1 68.46270   f   0       0      1       1   0.0  1.1
## 1695 253   2434      0   1 78.43943   m   0       1      1       1   0.0  7.1
## 1703 254    737      1   1 39.85763   f   0       0      1       1   0.0  3.1
## 1707 255   2405      0   0 35.31006   f   0       0      1       1   0.0  0.7
## 1713 256   2370      0   1 31.44422   f   0       0      0       0   0.0  1.1
## 1719 257   2283      0   1 58.26420   f   0       0      0       0   0.0  0.5
## 1722 258   2371      0   1 51.48802   f   0       0      0       0   0.0  1.1
## 1730 259   2284      0   0 59.96988   f   0       0      1       0   0.0  3.1
## 1735 260   1674      2   0 74.52430   m   0       0      1       0   0.0  5.6
## 1736 261   2348      0   0 52.36413   f   0       0      1       1   0.0  3.2
## 1742 262   1850      1   0 42.78713   f   0       0      1       0   0.0  2.8
## 1745 263   1303      1   0 34.87474   f   0       0      1       1   0.5  1.1
## 1750 264   1542      1   0 44.13963   f   0       0      1       1   0.0  3.4
## 1754 265   1084      1   0 46.38193   f   0       0      1       0   0.0  3.5
## 1758 266   2287      0   1 56.30938   f   0       0      0       0   0.0  0.5
## 1765 267    179      2   1 70.90760   f   0       1      1       1   1.0  6.6
## 1766 268   1191      2   1 55.39493   f   0       1      1       0   0.5  6.4
## 1768 269   1898      2   0 45.08419   f   0       0      0       0   0.0  3.6
## 1775 270   2010      1   1 26.27789   f   0       0      1       1   0.0  1.0
## 1778 271   2238      0   0 50.47228   f   0       0      1       0   0.5  1.0
## 1786 272   2194      0   1 38.39836   f   0       0      0       0   0.0  0.5
## 1792 273   1649      1   0 47.41958   f   0       0      0       1   0.0  2.2
## 1795 274   1447      1   1 47.98084   f   0       0      0       0   0.0  1.6
## 1800 275   2020      0   1 38.31622   f   0       0      0       0   0.0  2.2
## 1804 276   2147      0   1 50.10815   f   0       0      0       0   0.0  1.0
## 1806 277   2105      0   0 35.08830   f   0       0      0       0   0.5  1.0
## 1811 278   1996      1   0 32.50376   f   0       0      0       0   0.0  5.6
## 1816 279   2102      0   0 56.15332   f   0       0      0       0   0.0  0.5
## 1823 280   2081      0   1 46.15469   f   0       0      0       0   0.0  1.6
## 1830 281     41      2   1 65.88364   f   0       1      0       0   1.0 17.9
## 1831 282   1673      1   0 33.94387   f   0       0      1       0   0.0  1.3
## 1835 283   2095      0   0 62.86105   f   0       0      0       0   0.0  1.1
## 1839 284   2087      0   0 48.56400   f   0       0      0       0   0.0  1.3
## 1846 285   2070      0   1 46.34908   f   0       0      0       0   0.0  0.8
## 1847 286   2077      0   1 38.85284   f   0       0      1       1   0.0  2.0
## 1849 287   1552      0   1 58.64750   f   0       0      0       1   0.0  6.4
## 1853 288   1067      1   0 48.93634   f   0       0      1       0   0.5  8.7
## 1855 289    799      2   1 67.57290   m   0       0      1       0   0.5  4.0
## 1859 290   2032      0   1 65.98494   f   0       0      0       0   0.0  1.4
## 1866 291    901      1   1 40.90075   f   0       0      0       0   0.0  3.2
## 1871 292   1785      2   0 50.24504   m   0       0      1       0   0.0  8.6
## 1874 293   1989      0   0 57.19644   f   0       0      1       1   1.0  8.5
## 1876 294   1971      0   1 60.53662   m   0       0      1       0   0.0  6.6
## 1883 295    875      1   1 35.35113   m   0       0      0       0   0.0  2.4
## 1885 296   1990      0   0 31.38125   f   0       0      0       0   0.0  0.8
## 1888 297    533      1   1 55.98631   m   0       0      1       0   0.0  1.2
## 1891 298   1969      0   0 52.72553   f   0       0      1       0   0.0  1.1
## 1894 299   1962      0   1 38.09172   f   0       0      0       0   0.0  2.4
## 1895 300    207      2   0 58.17112   f   0       0      1       0   0.0  5.2
## 1897 301   1969      0   0 45.21013   f   0       0      0       0   0.0  1.0
## 1900 302   1940      0   1 37.79877   f   0       0      0       0   0.0  0.7
## 1905 303   1597      2   0 60.65982   f   0       0      1       1   0.0  1.0
## 1909 304   1899      0   1 35.53457   f   0       0      0       0   0.0  0.5
## 1910 305   1885      0   0 43.06639   f   0       0      1       1   0.0  2.9
## 1915 306   1885      0   0 56.39151   f   0       0      1       0   0.0  0.6
## 1917 307   1818      0   0 30.57358   f   0       0      0       0   0.0  0.8
## 1922 308   1822      0   1 61.18275   f   0       0      1       0   0.0  0.4
## 1927 309   1663      0   0 58.29979   f   0       0      0       0   0.0  0.4
## 1932 310   1608      0   1 62.33265   f   0       0      0       0   0.5  1.7
## 1937 311   1508      0   1 37.99863   f   0       0      0       0   0.0  2.0
## 1941 312   1457      0   0 33.15264   f   0       0      0       1   0.0  6.4
##      chol albumin alk.phos   ast platelet protime stage
## 1     261    2.60     1718 138.0      190    12.2     4
## 3     302    4.14     7395 113.5      221    10.6     3
## 12    176    3.48      516  96.1      151    12.0     4
## 16    244    2.54     6122  60.6      183    10.3     4
## 23    279    3.53      671 113.2      136    10.9     3
## 29    248    3.98      944  93.0       NA    11.0     3
## 35    322    4.09      824  60.5      204     9.7     3
## 42    280    4.00     4651  28.4      373    11.0     3
## 50    562    3.08     2276 144.2      251    11.0     2
## 57    200    2.74      918 147.3      302    11.5     4
## 58    259    4.16     1104  79.1      258    12.0     4
## 70    236    3.52      591  82.2       71    13.6     4
## 72    281    3.85     1181  88.4      244    10.6     3
## 84     NA    2.27      728  71.0      156    11.0     4
## 91    231    3.87     9010 127.7      295    11.0     3
## 102   204    3.66      685  72.9      198    10.8     3
## 115   274    3.15     1533 117.8      224    10.5     4
## 118   178    2.80      961 280.6      283    12.4     4
## 119   235    3.56     1881  93.0      209    11.0     3
## 134   374    3.51     1919 122.5      322    13.0     4
## 138   252    3.83      843  65.1      336    11.4     4
## 150   271    3.63     1376 120.9      173    11.6     4
## 153   395    2.94     6065 227.0      214    11.7     4
## 155   456    4.00     5719 221.9       70     9.9     2
## 168   298    4.10      661 107.0      324    11.3     2
## 180  1128    3.68     3228 165.9      421     9.9     3
## 186   175    3.31     3697 101.9       80    12.0     4
## 187   222    3.23     1975 189.1      144    13.0     4
## 190   370    3.78     5833  73.5      390    10.6     2
## 200   260    2.54     7277 121.3      124    11.0     4
## 203   296    3.44     9933 206.4      195    10.3     2
## 215   262    3.34     7277  82.6      286    10.6     4
## 231   210    3.19     1592 218.6      180    12.0     3
## 241   364    3.70     1840 170.5      273    10.5     2
## 255   314    3.20    12259  72.2      431    10.6     3
## 259   172    3.39      558  71.3      311    10.6     2
## 270   334    3.01     6931 180.6      102    12.0     4
## 272   383    3.53     1234 138.0      234    11.0     4
## 282   282    3.00     9067  72.2      563    10.6     4
## 290    NA    3.34    11047 104.5      358    11.0     4
## 305    NA    3.26     1215 151.9      226    11.7     4
## 309    NA    3.54     8778  56.8      344    11.0     4
## 325   361    3.64     5430  67.1      203    10.6     2
## 340   299    3.55     1029 119.4      199    11.7     3
## 351    NA    3.93     1826  71.3      474    10.9     2
## 360   482    2.84    11552 136.7      518    12.7     3
## 368   316    3.65     1716 187.6      356     9.8     3
## 375   259    3.70    10397 188.3      214    11.0     3
## 384    NA    3.82      678  97.7      233    11.0     4
## 388   257    3.36     1080 107.0      128    10.6     4
## 397   276    3.60     4332  99.3      273    10.6     2
## 407   614    3.70     5084 206.4      362    10.6     1
## 416    NA    3.10     6456  56.8      214    11.0     4
## 419   288    3.40     5487  73.5      254    11.0     4
## 424   416    3.94    10165  80.0      213    11.0     3
## 430   498    3.80    13862  95.5      365    10.6     2
## 436   260    3.18    11320 105.8      216    12.4     3
## 447   242    4.08     5890  56.8       NA    10.6     1
## 463   329    3.50     7623 126.4      321    10.6     3
## 470   604    3.40      876  71.3      228    10.3     3
## 483   216    3.94      601  60.5      211    13.0     1
## 497   302    2.75     1523  43.4      329    13.2     4
## 507   932    3.12     5396 244.9      165    11.6     3
## 510   373    3.50     1009 150.4      178    11.0     3
## 516   256    3.60      724 141.1      430    10.0     1
## 522   427    3.70     1909 182.9      123    11.0     3
## 535   466    3.91     1787 328.6      261    10.0     3
## 545   174    4.09      642  71.3      203    10.6     3
## 559   652    3.46     3292 215.5      227    12.4     3
## 563    NA    4.64      666  54.3      265    10.6     2
## 576   258    3.57     2201 120.9      410    11.5     4
## 587   320    3.54     1243 122.5      225    10.0     3
## 593   132    3.60      423  49.6      265    11.0     1
## 608   558    3.99      967  89.9      278    11.0     4
## 612   674    2.53     2078 182.9      268    11.5     4
## 617   394    3.08     2132 155.0      165    11.6     4
## 618   244    3.41     1819 170.5      132    12.1     3
## 620   436    3.02     2176 170.5      236    10.6     4
## 624   315    4.24     1637 170.5      426    10.9     3
## 635   247    3.72     1303 176.7      360    11.2     4
## 639   448    3.65     1218  60.5      385    11.7     4
## 649   472    4.09     1580 117.8      412    11.1     3
## 659   250    3.50     1138  71.3       81    12.9     4
## 674   263    3.76     1345 138.0      181    11.2     3
## 677   262    3.48     2045  89.9      225    11.5     4
## 688  1600    3.21     2656  82.2      181    10.9     3
## 689   345    4.40     1860 218.6      447    10.7     3
## 691   296    4.06     1032  80.6      442    12.0     3
## 695   408    3.65     1083 110.1      200    11.4     2
## 699   660    4.22     1857 151.9      337    11.0     2
## 708   325    3.47     2460 246.5      430    11.9     4
## 711   206    3.13     1626  86.8      145    12.2     4
## 712   353    3.67     2039 232.5      380    11.1     2
## 727   201    3.11     1212 159.7      188    11.8     4
## 730    NA    2.64      559 119.4      401    11.7     2
## 731    NA    3.70     1258  99.2      338    10.4     3
## 745   420    3.26     3196  77.5      344    11.4     3
## 749   239    3.77     1877  97.7      312    10.2     1
## 763   460    3.35     1472 108.5      172    10.2     2
## 776   178    3.00      746 178.3      119    12.0     4
## 780   400    3.60     1689 164.3      327    10.4     3
## 792   248    3.97      646  62.0      128    10.1     1
## 804   188    3.67     1273 119.4      110    11.1     4
## 805   303    3.64     2108 128.7      349    11.1     2
## 815   464    4.20     1644 151.9      348    10.3     3
## 825    NA    3.90     1087 103.9      137    10.6     2
## 830   212    4.03      648  71.3      316    10.7     1
## 841   127    3.50     1062  49.6      334    10.3     2
## 849   120    3.61      804 110.1      271    10.6     3
## 859   486    3.54     1052 108.5      141    10.9     3
## 866   528    4.18     2404 172.1      467    10.7     3
## 874   267    3.67      754 196.9      136    11.8     4
## 885   374    3.74      979 128.7      266    11.1     4
## 890   259    4.30     1040 110.1      268    11.7     3
## 901   303    4.19     1584 111.6      307    10.3     3
## 913   458    3.63     1588 107.0      438     9.9     3
## 924   950    3.11     2374 170.5      354    11.0     4
## 929   390    3.30      878 138.0      207    10.2     3
## 936   636    3.83      944  97.7      306     9.5     3
## 938   325    3.98      766 130.2      344    10.6     3
## 946   151    3.08     1112  46.5      213    13.2     4
## 947   298    4.13      758  65.1      256    10.7     3
## 957    NA    3.23      790 179.8      104    13.0     4
## 959   251    3.90      681  57.4      182    10.8     4
## 960   316    3.51     1162 147.3      238    10.0     4
## 969   269    3.12     1441 165.9      166    11.1     4
## 974   268    4.08     1174  86.8      453    10.0     2
## 985    NA    2.89     1828 299.2      123    12.6     4
## 990   420    3.87     1009  57.4       NA     9.7     3
## 1002 1775    3.43     2065 165.9      418    11.5     3
## 1008  242    3.80      614 136.4      121    13.2     4
## 1012  448    3.83     1052 127.1      181     9.8     3
## 1018  331    3.95      577 128.7      165    10.1     4
## 1027  578    3.67     1353 127.1      427    10.7     2
## 1039  263    3.57      836  74.4      445    11.0     2
## 1049  263    3.35     1636 116.3      206     9.8     2
## 1058  399    3.60     3472 155.0      344    10.1     2
## 1070  426    3.93     2424 145.7      252    10.5     3
## 1076  328    3.31     1260  94.6      142    11.6     4
## 1082  290    4.09     2120 186.0      318    10.0     3
## 1094  346    3.77      794 125.6      336    10.6     2
## 1097  364    3.48      720 134.9      283     9.9     2
## 1106  332    3.60     1492 134.9      277    11.0     4
## 1109  556    3.26     3896 198.4      335    10.0     3
## 1113  309    3.84      858  41.9      253    11.4     3
## 1117   NA    3.89     1284 173.6      239     9.4     3
## 1124  288    3.37      791  57.4      213    10.7     2
## 1129 1015    3.26     3836 198.4      330     9.8     3
## 1135  257    3.79     1664 102.3      140     9.9     4
## 1138   NA    3.63     1536 134.9      233    10.0     1
## 1147  460    3.03      721  85.3      301     9.4     2
## 1158  586    3.01     2276 114.7      339    10.9     3
## 1161  217    3.85      453  54.3      270    11.1     1
## 1171  168    2.56     1056 120.9      108    14.1     3
## 1172  220    3.35     1620 153.5      311    11.2     4
## 1175  358    3.52     2468 201.5      151    11.5     2
## 1179  286    3.42     1868  77.5      487    10.0     2
## 1190  450    3.37     1408 116.3      313    11.2     2
## 1199  317    3.46      714 130.2      207    10.1     3
## 1203  217    3.62      414  76.0      224    10.5     3
## 1211  502    3.56      964 120.9      269     9.6     2
## 1222  260    3.19      815 127.1      160    12.0     4
## 1223  233    4.08      622  66.7      358     9.9     3
## 1226   NA    3.34     1428 181.4       88    13.3     4
## 1227  196    3.45     2496 133.3      212    11.3     4
## 1232 1480    3.26     1960 457.3      213     9.5     2
## 1240  376    3.86     1015  83.7      238    10.3     4
## 1246  257    3.80      842  97.7       NA     9.2     2
## 1256  408    4.22     1387 142.6      295    10.1     3
## 1261  390    3.61     1509  88.4      263     9.0     3
## 1262   NA    4.52      784  74.4      361    10.1     3
## 1272  205    3.34     1031  91.5      217     9.8     3
## 1279  236    3.42     1403  89.9      493     9.8     2
## 1288   NA    3.85      663  79.1      311     9.7     1
## 1298  283    3.80      718 108.5      340    10.1     3
## 1308   NA    3.56     1790 139.5      149    10.1     4
## 1314  258    4.01      559  43.4      277    10.4     2
## 1315   NA    4.08      665  74.4      325    10.2     4
## 1321  396    3.83     2148 102.3      278     9.9     4
## 1324  478    4.38     1629 237.2      175    10.4     3
## 1334  248    3.58      554  76.0       79    10.3     4
## 1335   NA    3.69      674  26.4      539     9.9     2
## 1340  201    3.73     1345  54.3      445    10.1     2
## 1348  674    3.55     2412 167.4      471     9.8     3
## 1353  256    3.54     1132  74.4      192    10.5     3
## 1358  225    3.53      933  69.8      200    12.7     3
## 1362  808    3.43     2870 153.5      268    11.5     3
## 1366  187    3.48      654 120.9      164    11.0     4
## 1374  360    3.63     1812  97.7      256     9.9     3
## 1379   NA    3.93     1828 133.3      327    10.2     2
## 1383 1092    3.35     3740 147.3      399    15.2     4
## 1384  308    3.69      696  51.2      344     9.8     4
## 1394  932    3.19     2184 161.2      382    10.4     4
## 1398  293    4.30      975 125.6      336     9.1     2
## 1403  347    3.90     2544 221.7      129    11.5     4
## 1404  226    3.36      810  72.9      117    11.6     4
## 1412  266    3.97     1164 102.3      201    10.1     2
## 1421  286    2.90     1692 141.1      381     9.6     2
## 1429  392    3.43     1395 184.5      328    10.2     3
## 1432  236    3.55     1391 138.0      332     9.9     3
## 1443  235    3.20     1758 107.0      228    10.8     4
## 1453  223    3.80     1044  80.6      514    10.0     2
## 1455  149    4.04      598  52.7      166     9.9     2
## 1464  255    3.74     1024  77.5      281    10.2     3
## 1472  382    3.55     1516 238.7      126    10.3     3
## 1477  213    4.07     5300  57.4      240    11.0     1
## 1485   NA    3.33      733  85.3      259    10.1     4
## 1492  396    3.20     1440 153.5      156    10.0     4
## 1495  252    4.01     1210  72.9      309     9.5     2
## 1497  346    3.37     1098 122.5      298    10.0     2
## 1507   NA    3.76     1282 100.8      114    10.3     3
## 1515  232    3.98     1074 100.8      223     9.9     3
## 1521  400    3.40     1134  96.1      356    10.2     3
## 1523  404    3.43     1866  79.1      236     9.9     3
## 1527 1276    3.85     1204 203.1      216    10.7     3
## 1531   NA    3.68      856  55.8      146    10.4     3
## 1538  608    3.31     1790 151.9      298    10.8     4
## 1542   NA    3.89      897  66.7      423    10.1     1
## 1552  215    4.17      936 134.9      176     9.6     3
## 1558  426    3.22     2716 210.8      228    10.6     2
## 1563  360    3.65     3186  94.6      269     9.7     4
## 1571  372    3.38     2310 167.4      240    12.4     3
## 1575  448    2.43     1833 134.0      210    11.0     4
## 1576  309    3.66     1214 158.1      309     9.7     3
## 1584  274    3.66     1065  88.4      251    10.1     2
## 1593  223    3.70      884  76.0      231     9.6     3
## 1602  316    3.35     1601 179.8      394     9.7     2
## 1606  215    3.35      645  93.0      165     9.6     3
## 1610  191    3.05     1020 175.2      139    11.4     4
## 1613  302    3.41      310  83.7       95    11.5     4
## 1617  518    1.96     2250 203.1      190    10.7     4
## 1621  267    3.02     1001 133.3      265    10.6     3
## 1625  514    3.06     2622 105.4      284     9.8     4
## 1626  578    3.35      976 116.3      322    11.2     2
## 1628 1336    4.16     3510 209.3      338    11.9     3
## 1630  253    3.79     1006 139.5      341     9.7     3
## 1632  442    2.95      820  85.3      181    10.1     3
## 1634  280    3.35     1093 128.7      295     9.8     2
## 1637  300    2.94     1794 130.2      319    11.2     4
## 1640  232    3.72      369  51.2      326    10.1     3
## 1648  316    3.62     1119 114.7      282     9.8     4
## 1652  354    2.97     1553 196.9      277     9.9     3
## 1660  468    2.81     2009 198.4      233    10.0     4
## 1662  350    3.22     1268 272.8      270     9.6     3
## 1666  273    3.65      794  52.7      305     9.6     3
## 1668  387    3.77     1613 150.4      185    10.1     4
## 1674 1712    2.83     3681 158.1      297    10.0     3
## 1678  324    3.51     1237  66.7      371    10.0     3
## 1686  242    3.20     1556 175.2      195    10.6     4
## 1689  299    3.36     2769 220.1      303    10.9     4
## 1691  227    3.61      676  83.0      249     9.9     2
## 1692  246    3.35      924 113.2      317    10.0     4
## 1695  243    3.03      983 158.1       97    11.2     4
## 1703  227    3.75     1136 110.0      264    10.0     3
## 1707  193    3.85      466  53.0      156    10.3     3
## 1713  336    3.74      823  84.0      242     9.7     3
## 1719  280    4.23      377  56.0      227    10.6     2
## 1722  414    3.44     1003  99.0      271     9.6     1
## 1730  277    2.97     1110 125.0      221     9.8     3
## 1735  232    3.59     1120  98.0      248    10.9     4
## 1736  375    3.14      857  89.0      375     9.5     3
## 1742  322    3.06     2562  91.0      231     9.5     3
## 1745  432    3.57     1406 190.0      248    11.4     4
## 1750  356    3.12     1911  92.0      318    11.2     3
## 1754  348    3.20      938 120.0      296    10.0     4
## 1758  318    3.32      613  70.0      279    10.2     3
## 1765  222    2.33      620 106.0      195    12.1     4
## 1766  344    2.75      834  82.0      149    11.0     4
## 1768  374    3.50     1428 188.0      151    10.1     2
## 1775  448    3.74     1128  71.0      228    10.2     3
## 1778  321    3.50      955 111.0      289     9.7     3
## 1786  226    2.93      674  58.0      153     9.8     1
## 1792  328    3.46     1677  87.0      202     9.6     3
## 1795   NA    3.07     1995 128.0      372     9.6     4
## 1800  572    3.77     2520  92.0      309     9.5     4
## 1804  219    3.85      640 145.0       95    10.7     2
## 1806  317    3.56     1636  84.0      394     9.8     3
## 1811  338    3.70     2139 185.0      215     9.9     4
## 1816  198    3.77      911  57.0      280     9.8     2
## 1823  325    3.69     2583 142.0      284     9.6     3
## 1830  175    2.10      705 338.0       62    12.9     4
## 1831  304    3.52     1622  71.0      255     9.5     4
## 1835  412    3.99     1293  91.0      422     9.6     4
## 1839  291    3.44     1082  85.0      251     9.5     3
## 1846  253    3.48      688  57.0      252    10.0     1
## 1847  310    3.36     1257 122.0      143     9.8     3
## 1849  373    3.46     1768 120.0      258    10.1     4
## 1853  310    3.89      637 117.0      298     9.6     2
## 1855  416    3.99      960  86.0      269     9.8     2
## 1859  294    3.57      722  93.0      283     9.8     3
## 1866  339    3.18     3336 205.0      304     9.9     4
## 1871  546    3.73     1070 127.0      291    11.2     3
## 1874  194    2.98      815 163.0      122    12.3     4
## 1876 1000    3.07     3150 193.0      299    10.9     4
## 1883  646    3.83      855 127.0      306    10.3     3
## 1885  328    3.31     1105 137.0      293    10.9     4
## 1888  275    3.43     1142  75.0      217    11.3     4
## 1891  340    3.37      289  97.0      243    10.2     3
## 1894  342    3.76     1653 150.0      213    10.8     3
## 1895   NA    2.23      601 135.0      206    12.3     4
## 1897  393    3.57     1307  74.0      295    10.5     4
## 1900  335    3.95      657  52.0      268    10.6     2
## 1905  372    3.25     1190 140.0      248    10.6     4
## 1909  219    3.93      663  45.0      246    10.8     3
## 1910  426    3.61     5184 288.0      275    10.6     3
## 1915  239    3.45     1072  55.0      227    10.7     2
## 1917  273    3.56     1282 130.0      344    10.5     2
## 1922  246    3.58      797  91.0      288    10.4     2
## 1927  260    2.75     1166  70.0      231    10.8     2
## 1932  434    3.35     1713 171.0      234    10.2     2
## 1937  247    3.16     1050 117.0      335    10.5     2
## 1941  576    3.79     2115 136.0      200    10.8     2

Select the last measurement per patient using the pbcseq data set.
We can use the exact same code as before, but we need to start checking for dublicates from the last measurement per patient.
The duplicated() function has an argument called fromLast for that. The code duplicated(pbcseq[, "id"], fromLast = TRUE) will return a logical vector indicating whether the element is duplicated or not starting from the last observation per patient.
We want the opposite (not dublicated). In R we can obtain the opposite by using the symbol !.

pbcseq[!duplicated(pbcseq[, "id"], fromLast = TRUE), ]
##       id futime status trt      age sex  day ascites hepato spiders edema bili
## 2      1    400      2   1 58.76523   f  192       1      1       1   1.0 21.3
## 11     2   5169      0   1 56.44627   f 3226       1      1       1   1.0  4.6
## 15     3   1012      2   1 70.07255   m  743       0      0       1   0.5  1.8
## 22     4   1925      2   1 54.74059   f 1824       1      1       1   1.0  5.3
## 28     5   1505      1   0 38.10541   f 1455       0      1       1   0.5 19.0
## 34     6   2503      2   0 66.25873   f 2453      NA     NA      NA   0.0  0.7
## 41     7   2501      0   0 55.53457   f 2262       0      0       0   0.0  1.4
## 49     8   2466      2   0 53.05681   f 2218       1      1       0   0.5  5.4
## 56     9   2400      2   1 42.50787   f 2278       1      1       0   1.0 14.8
## 57    10     51      2   0 70.55989   f    0       1      0       1   1.0 12.6
## 69    11   3762      2   0 53.71389   f 3694       1      1       1   1.0  9.6
## 71    12    304      2   0 59.13758   f  180       1      0       1   0.5 10.0
## 83    13   4247      0   0 45.68925   f 4243       0      0       0   0.0  1.2
## 90    14   1217      2   0 56.22177   m 1204      NA     NA      NA   0.5  0.9
## 101   15   3584      2   1 64.64613   f 3537      NA     NA      NA   1.0 11.4
## 114   16   4345      0   0 40.44353   f 4054       0      0       0   0.0  0.9
## 117   17    769      2   0 52.18344   f  673       1      1       1   1.0 13.6
## 118   18    132      2   1 53.93018   f    0       0      1       1   1.0 11.4
## 133   19   4901      0   1 49.56057   f 4696       0      1       0   0.0  0.8
## 137   20   1356      2   0 59.95346   f 1344      NA     NA      NA   0.0 32.0
## 149   21   3657      2   0 64.18891   m 3513      NA     NA      NA   1.0  7.8
## 152   22    673      2   1 56.27652   f  360       0      0       1   0.5  2.4
## 154   23    264      2   0 55.96715   f  182       1      1       1   1.0 19.5
## 167   24   4079      2   1 44.52019   m 4034       1      1       0   0.5 16.8
## 179   25   4796      0   0 45.07324   f 3637       0      0       1   0.0  0.7
## 185   26   1444      2   0 52.02464   f 1434      NA     NA      NA   1.0 16.2
## 186   27     77      2   0 54.43943   f    0       1      1       1   0.5 21.6
## 189   28    549      2   0 44.94730   f  375       1      1       1   1.0 21.3
## 199   29   5074      2   0 63.87680   f 4333       1      1       1   1.0  1.4
## 202   30    321      2   0 41.38535   f  299       1      1       1   0.5 36.0
## 214   31   3839      2   0 41.55236   f 3590       0      0       1   0.0 12.0
## 230   32   5192      0   0 53.99589   f 5152       0      0       0   0.5  0.9
## 240   33   3170      2   0 51.28268   f 3004       0      0       0   0.0  1.3
## 254   34   4602      0   1 52.06023   f 4457       0      1       0   0.5  1.0
## 258   35   2847      2   0 48.61875   f  743       0      1       0   0.0  4.2
## 269   36   4281      0   0 56.41068   f 3956       0      1       1   0.0  0.7
## 271   37    223      2   1 61.72758   f  144       1      1       1   1.0 13.5
## 281   38   3244      2   0 36.62697   f 3209      NA     NA      NA   0.5  5.6
## 289   39   2297      2   1 55.39220   f 2247       0      1       0   0.5 10.5
## 304   40   5136      0   1 46.66940   f 4845       0      1       1   1.0 18.0
## 308   41   1350      2   1 33.63450   f 1151       0      1       1   1.0 16.2
## 324   42   5122      0   0 33.69473   f 5118       0      1       1   0.5 13.0
## 339   43   5225      0   1 48.87064   f 4877       1      1       0   0.0  1.1
## 350   44   3428      2   0 37.58248   f 3414      NA     NA      NA   0.5 29.4
## 359   45   4694      0   0 41.79329   f 3219       0      0       1   0.0  0.8
## 367   46   2256      2   1 45.79877   f 2174       0      1       1   1.0 16.5
## 374   47   3245      0   0 47.42779   f 2311       0      1       0   0.0  0.9
## 383   48   5096      0   0 49.13621   m 2517       0      0       0   0.0  1.4
## 387   49    708      2   0 61.15264   f  525      NA     NA      NA   0.0  3.1
## 396   50   2598      2   1 53.50856   f 2561       1      0       1   1.0  5.8
## 406   51   3853      2   0 52.08761   f 3529       0      1       1   1.0 16.9
## 415   52   2386      2   1 50.54073   m 2380       1      1       1   1.0 27.1
## 418   53   1000      2   1 67.40862   f  905      NA     NA      NA   0.0 12.6
## 423   54   1434      2   1 39.19781   f 1125       0      1       1   1.0 18.6
## 429   55   1360      2   1 65.76318   m 1316      NA     NA      NA   0.0 17.0
## 435   56   1847      2   0 33.61807   f 1838      NA     NA      NA   0.5 41.0
## 446   57   3282      2   1 53.57153   f 3280      NA     NA      NA   1.0 15.6
## 462   58   5128      0   1 44.56947   m 5076       0      0       0   0.0  1.6
## 469   59   2224      2   1 40.39425   f 2096      NA     NA      NA   0.5 22.7
## 482   60   5034      0   1 58.38193   f 4435       0      0       0   0.0  0.7
## 496   61   4925      0   0 43.89870   m 4580       0      0       0   0.0  1.0
## 506   62   3090      2   0 60.70637   f 3073      NA     NA      NA   1.0  6.8
## 509   63    859      2   0 46.62834   f  385       0      1       0   0.5 17.0
## 515   64   1487      2   0 62.90760   f 1411       1      1       1   1.0 16.5
## 521   65   4842      0   1 40.20260   f 1470       0      0       0   0.0  1.4
## 534   66   4191      2   1 46.45311   m 4181      NA     NA      NA   0.0  9.2
## 544   67   2769      2   0 51.28816   f 2767      NA     NA      NA   0.5  4.7
## 558   68   4708      0   1 32.61328   f 4417       0      1       0   1.0  5.6
## 562   69   1170      2   1 49.33881   f 1050       1      1       1   1.0 21.9
## 575   70   3683      2   1 56.39973   f 3682      NA     NA      NA   1.0 16.6
## 586   71   4865      0   0 48.84600   f 4832       0      1       0   0.5  2.8
## 592   72   4853      0   0 32.49281   f 1475       0      0       0   0.0  0.7
## 607   73   4859      0   0 38.49418   f 4715       0      0       0   0.0  0.5
## 611   74   1827      2   1 51.92060   f 1819      NA     NA      NA   0.0 18.0
## 616   75   1191      2   1 43.51814   f 1078       0      1       1   0.0  6.6
## 617   76     71      2   1 51.94251   f    0       0      1       1   1.0 12.2
## 619   77    326      2   0 49.82615   f  188       1      1       0   1.0 13.2
## 623   78   1690      2   1 47.94524   f  920      NA     NA      NA   0.0 11.0
## 634   79   4376      0   1 46.51608   f 4091       0      1       1   0.5  2.1
## 638   80    890      2   0 67.41136   m  736       0      1       0   0.0 11.5
## 648   81   2540      2   1 63.26352   f 2529      NA     NA      NA   1.0 10.2
## 658   82   3574      2   1 67.31006   f 2921       0      0       0   0.5  0.7
## 673   83   4719      0   1 56.01369   f 4714       0      0       0   1.0  1.4
## 676   84   4701      0   0 55.83025   f  371       0      0       0   0.0  0.4
## 687   85   3358      2   0 47.21697   f 3228       1      1       0   1.0 14.7
## 688   86   1657      2   1 52.75838   f    0       0      1       1   0.0  5.0
## 690   87    198      2   1 37.27858   f  182       0      1       0   0.0  1.2
## 694   88   3076      2   0 41.39357   f  804       0      0       1   0.5  0.9
## 698   89   1741      2   1 52.44353   f 1671      NA     NA      NA   1.0  6.5
## 707   90   2689      2   1 33.47570   m 2587       1      1       1   0.0 13.4
## 710   91    460      2   0 45.60712   f  362       0      1       1   0.0  4.2
## 711   92    389      2   1 76.70910   f    0       1      0       0   1.0  1.4
## 726   93   4583      0   1 36.53388   f 4565       0      0       0   0.0 22.2
## 729   94    750      2   1 53.91650   f  383       0      1       1   0.0  9.8
## 730   95    137      2   0 46.39014   f    0       1      1       1   1.0 17.4
## 744   96   4520      0   1 48.84600   f 4263       0      0       0   0.0  0.7
## 748   97    620      2   0 71.89322   m  550      NA     NA      NA   0.0  7.8
## 762   98   4492      0   1 28.88433   f 4438       0      0       0   0.0  0.6
## 775   99   4489      0   0 48.46817   m 4206       0      1       0   0.0  1.6
## 779  100    552      2   0 51.46886   m  514      NA     NA      NA   0.5  4.4
## 791  101   4250      0   0 44.95003   f 4049       0      0       0   0.5  0.6
## 803  102   3770      0   1 56.56947   f 3354       0      1       0   0.0  0.7
## 804  103    110      2   0 48.96372   f    0       1      1       1   1.0  2.5
## 814  104   3086      2   1 43.01711   f 2913       0      1       1   1.0 11.0
## 824  105   3092      1   0 34.03970   f 2870       1      0       0   0.5 15.9
## 829  106   3222      2   1 68.50924   f 3218      NA     NA      NA   0.0  2.0
## 840  107   4058      0   0 62.52156   f 3494       0      0       0   0.0  0.7
## 848  108   2583      2   1 50.35729   f 2224       0      0       1   0.0  0.5
## 858  109   3173      0   0 44.06297   f 2895       0      1       0   1.0  0.5
## 865  110   2044      2   1 38.91034   f 1985       1      1       0   1.0  2.5
## 873  111   2350      1   1 41.15264   f 2190      NA     NA      NA   1.0 20.6
## 884  112   3445      2   0 55.45791   f 3394      NA     NA      NA   0.5 10.5
## 889  113    951      2   1 51.23340   f  899      NA     NA      NA   0.5 26.0
## 900  114   3395      2   0 52.82683   m 3390      NA     NA      NA   1.0 27.6
## 912  115   4091      0   0 42.63929   f 3716       0      0       0   0.0  1.1
## 923  116   4015      0   1 61.07050   f 3683       0      0       0   0.0  1.0
## 928  117   1083      2   1 49.65640   f 1070      NA     NA      NA   1.0 14.5
## 935  118   2288      2   1 48.85421   f 2176       1      1       1   1.0 12.0
## 937  119    515      2   1 54.25599   f  113       0      0       1   0.0  2.3
## 945  120   2033      1   1 35.15127   m 2007      NA     NA      NA   0.5 14.0
## 946  121    191      2   0 67.90691   m    0       1      1       0   1.0  1.3
## 956  122   3966      0   1 55.43600   f 3178       0      0       0   0.0  0.6
## 958  123    971      2   1 45.82067   f  155       1      1       1   1.0  4.7
## 959  124   3903      2   1 52.88980   m    0       0      1       0   0.0  0.6
## 968  125   2468      1   0 47.18138   f 2367      NA     NA      NA   1.0 13.4
## 973  126    824      2   1 53.59890   f  816      NA     NA      NA   1.0 10.8
## 984  127   3924      0   0 44.10404   f 3626       0      0       0   0.0  2.3
## 989  128   1037      2   1 41.94935   f  979       1      0       1   1.0 16.0
## 1001 129   3908      0   1 63.61396   f 3700       0      1       0   0.5  1.0
## 1007 130   1411      2   0 44.22724   f 1408      NA     NA      NA   0.5 27.2
## 1011 131    850      2   0 62.00137   f  732       1      1       1   1.0 16.2
## 1017 132   3613      0   1 40.55305   f 1488       0      0       0   0.0  1.4
## 1026 133   2796      2   0 62.64476   m 2778      NA     NA      NA   0.5 27.2
## 1038 134   3818      0   0 42.33539   f 3611       0      1       0   0.0  5.3
## 1048 135   3819      0   1 42.96783   f 3157       0      0       0   0.0  0.5
## 1057 136   3767      0   1 55.96167   f 3043       0      0       0   0.0  1.2
## 1069 137   3659      0   1 62.86105   f 3464       0      1       0   0.0  0.6
## 1075 138   1297      2   1 51.24983   m 1296      NA     NA      NA   0.5 31.6
## 1081 139   2357      1   0 46.76249   f 1813       0      1       0   0.5  4.5
## 1093 140   3728      0   1 54.07529   f 3592       0      1       0   0.0  0.9
## 1096 141   3719      0   1 47.03628   f  375       0      0       0   0.0  0.7
## 1105 142   2419      2   0 55.72621   f 2364      NA     NA      NA   0.5 23.4
## 1108 143    786      2   0 46.10267   f  376       0      1       1   0.5  4.5
## 1112 144    945      2   0 52.28747   f  860       0      1       0   1.0 14.1
## 1116 145   3645      0   0 51.20055   f  735       0      1       1   0.0  0.5
## 1123 146   3086      2   0 33.86448   f 2600       0      0       0   0.5  5.2
## 1128 147   3382      2   1 75.01164   f 1160       0      0       0   0.0  0.9
## 1134 148   1427      2   0 30.86379   f 1425       1      1       0   0.0  9.0
## 1137 149    762      2   1 61.80424   m  741      NA     NA      NA   0.0 15.4
## 1146 150   3560      0   0 34.98700   f 2577       0      1       1   0.5  1.0
## 1157 151   3539      0   1 55.04175   f 3275       0      0       1   1.0  3.4
## 1160 152   1152      2   1 69.94114   m  832      NA     NA      NA   0.0  4.3
## 1170 153   3532      0   1 49.60438   f 2942       0      0       0   0.0  0.4
## 1171 154    140      2   1 69.37714   m    0       0      0       1   1.0  2.4
## 1174 155   3516      0   0 43.55647   f  363       0      0       1   0.5  0.6
## 1178 156    853      2   0 59.40862   f  680       0      1       0   0.0 24.8
## 1189 157   3504      0   0 48.75838   f 3340       0      0       0   0.5  0.9
## 1198 158   2475      1   1 36.49281   f 2474       0      1       1   0.0 11.7
## 1202 159   1536      2   0 45.76044   m  742       0      1       1   0.0  6.6
## 1210 160   3441      0   0 57.37166   f 2144       0      0       0   0.5  0.8
## 1221 161   3466      0   0 42.74333   f 3414       0      0       1   0.0  3.3
## 1222 162    186      2   0 58.81725   f    0       0      1       1   0.0  3.2
## 1225 163   2055      2   1 53.49760   f 1923      NA     NA      NA   0.0  0.6
## 1226 164    276      2   0 43.41410   f    0       0      1       1   0.5  8.5
## 1231 165   1076      2   1 53.30595   m  978      NA     NA      NA   0.5 15.1
## 1239 166   3390      0   0 41.35524   f 2303       0      0       0   0.0  3.2
## 1245 167   1684      2   1 60.95825   m 1673      NA     NA      NA   0.0  1.2
## 1255 168   3384      0   0 47.75359   f 3086       0      0       1   0.0  0.9
## 1260 169   1212      2   0 35.49076   f 1132       0      0       0   0.0  2.2
## 1261 170   3361      0   1 48.66256   f    0       0      0       0   0.0  1.2
## 1271 171   3243      0   1 52.66804   f 2981       0      1       0   0.0  0.7
## 1278 172   2970      0   0 49.86995   f 2020       0      1       0   0.5  1.5
## 1287 173   3326      0   1 30.27515   f 2651       0      0       1   0.0  4.2
## 1297 174   3313      0   1 55.56742   f 3021       0      1       0   0.0  1.6
## 1307 175   3293      0   0 52.15332   f 2977       0      0       0   0.5  1.1
## 1313 176   1492      2   1 41.60986   f 1433       0      1       1   0.5  4.4
## 1314 177   3278      0   0 55.45243   f    0       0      0       0   0.0  0.9
## 1320 178   3249      0   1 70.00411   f 1466       0      0       0   0.0  0.7
## 1323 179   3242      0   0 43.94251   f  374       0      1       0   0.0  1.6
## 1333 180   3232      0   0 42.56810   f 2989       0      0       0   0.0 12.5
## 1334 181   3225      0   1 44.56947   f    0       0      1       1   0.0  1.4
## 1339 182   3224      0   1 56.94456   f 1141       0      0       0   0.0  0.6
## 1347 183   2241      1   0 40.26010   f 1989       0      1       1   0.0 14.5
## 1352 184    974      2   0 37.60712   f  913      NA     NA      NA   0.0 15.5
## 1357 185   2882      2   1 48.36140   f 1196       0      1       1   0.5  4.2
## 1361 186   1576      2   1 70.83641   f  782       0      0       1   0.5  2.6
## 1365 187    733      2   0 35.79192   f  729      NA     NA      NA   0.0 40.0
## 1373 188   2635      0   1 62.62286   f 2351       0      0       0   0.0  0.4
## 1378 189   3125      0   0 50.64750   f 1098       1      1       0   0.5  0.7
## 1382 190   3173      0   1 54.52704   f  796       0      0       1   0.0  2.2
## 1383 191    216      2   0 52.69268   f    0       1      1       1   0.0 24.5
## 1393 192   3112      0   1 52.72005   f 2988       0      1       0   0.0  1.3
## 1397 193    797      2   0 56.77207   f  750       1      1       1   1.0 11.7
## 1402 194   3118      0   1 44.39699   f 1734       0      1       0   0.0  1.1
## 1403 195   2999      0   1 29.55510   f    0       0      1       0   0.0  3.7
## 1411 196   2555      2   1 57.04038   f 2503      NA     NA      NA   1.0  2.5
## 1420 197   3034      0   1 44.62697   f 2778       0      0       0   0.0  0.9
## 1428 198   3025      0   0 35.79740   f 2236       0      1       1   0.5  1.0
## 1431 199   2991      0   1 40.71732   f  410       0      1       0   0.0  3.0
## 1442 200   2932      1   0 32.23272   f 2924      NA     NA      NA   0.0 24.6
## 1452 201   2963      0   0 41.09240   f 2945       0      1       1   0.5  1.4
## 1454 202   2941      0   1 61.63997   f  377       0      0       0   0.0  0.6
## 1463 203   2890      0   0 37.05681   f 2627       0      0       0   0.0  0.7
## 1471 204   2090      2   0 62.57906   f 2082      NA     NA      NA   0.5 12.0
## 1476 205   2081      2   1 48.97741   f 1070       1      0       0   1.0  5.4
## 1484 206   2924      0   1 61.99042   f 2198       0      0       0   0.0  0.5
## 1491 207   2840      0   1 72.77207   f 2185       0      0       0   1.0  0.8
## 1494 208    904      2   1 61.29500   f  868      NA     NA      NA   1.0 12.0
## 1496 209   2888      0   0 52.62423   f  217       0      0       0   0.0  0.5
## 1506 210   2893      0   0 49.76318   m 2867       0      1       1   0.0  1.3
## 1514 211   2865      0   0 52.91444   f 2590       1      0       1   1.0  3.8
## 1520 212   2845      0   0 47.26352   f 1342       0      0       0   0.0  0.7
## 1522 213   2189      0   1 50.20397   f  249       0      0       0   0.0  0.4
## 1526 214   1786      2   0 69.34702   f  732       1      1       1   0.5  4.0
## 1530 215   1080      2   0 41.16906   f  825      NA     NA      NA   0.5 22.5
## 1537 216   2336      0   1 59.16496   f 1989       0      1       0   0.0  7.6
## 1541 217    790      2   0 36.07940   f  725       0      1       1   1.0 34.6
## 1551 218   2839      0   1 34.59548   f 2834       0      0       0   0.0  0.5
## 1557 219   2826      0   0 42.71321   f 1366       0      0       1   0.5  2.1
## 1562 220   1235      2   1 63.63039   f 1233      NA     NA      NA   0.0  8.5
## 1570 221   2719      0   0 56.62971   f 2420       1      1       1   0.5  0.8
## 1574 222    597      2   0 46.26420   f  596      NA     NA      NA   0.0  7.3
## 1575 223    334      2   1 61.24298   f    0       1      1       0   1.0 14.1
## 1583 224   2614      0   1 38.62012   f 2434       0      0       0   0.0  5.1
## 1592 225   2691      0   1 38.77070   f 2490       0      0       0   0.0  2.0
## 1601 226   2647      0   0 56.69541   f 2643       0      0       0   0.0  0.8
## 1605 227    999      2   1 58.95140   m  996      NA     NA      NA   0.5 27.6
## 1609 228   2636      0   0 36.92266   f  889       0      0       0   0.0  0.9
## 1612 229    348      2   1 62.41478   f  335       1      1       0   1.0  6.2
## 1616 230   2648      0   0 34.60917   f  760       0      1       1   0.0  2.1
## 1620 231   1165      2   0 58.33539   f  797       1      1       1   0.0 14.8
## 1624 232   2620      0   1 50.18207   f  890       0      0       0   0.0  0.9
## 1625 233   2601      0   1 42.68583   f    0       0      1       1   0.0  0.9
## 1627 234   2445      0   0 34.37919   f  179       0      0       0   0.0  0.7
## 1629 235   2302      1   0 33.18275   f  190       0      1       1   0.0 14.5
## 1631 236   2577      0   1 38.38193   f  431      NA      1       1   0.0  0.8
## 1633 237   1947      1   1 59.76181   f  386       0      1       0   0.5  1.9
## 1636 238   1874      2   0 66.41205   f  376       0      1       0   0.5  0.4
## 1639 239    694      2   1 46.78987   f  689      NA     NA      NA   0.5  1.7
## 1647 240   2500      0   1 56.07940   f 2202       0      0       0   0.0  0.5
## 1651 241    837      1   0 41.37440   f  746       1      1       1   1.0 14.2
## 1659 242   2128      2   1 64.57221   f 2008      NA     NA      NA   0.5 11.8
## 1661 243    930      2   0 67.48802   f  183       0      1       0   0.0 11.0
## 1665 244   1690      2   1 44.82957   f 1211       0      1       0   0.0  8.8
## 1667 245   2459      0   0 45.77139   f  442       0      1       0   0.5  0.4
## 1673 246   1435      1   1 32.95003   f 1434       0      1       1   0.0  3.1
## 1677 247    940      1   1 41.22108   f  731       0      1       0   0.5  1.5
## 1685 248   2454      0   0 55.41684   f 2204       0      1       0   0.0  1.0
## 1688 249   2452      0   1 47.98084   f  382       0      1       1   0.0  0.8
## 1690 250   2327      1   0 40.79124   f  446       0      1       0   0.0  0.9
## 1691 251   2307      0   1 56.97467   f    0       0      0       0   0.0  0.5
## 1694 252   2439      0   1 68.46270   f  342       0      1       1   0.0  1.2
## 1702 253   2434      0   1 78.43943   m 2269       1      1       1   0.5  8.2
## 1706 254    737      1   1 39.85763   f  656       1      1       1   0.0 17.1
## 1712 255   2405      0   0 35.31006   f 1827       0      0       1   0.0  0.4
## 1718 256   2370      0   1 31.44422   f 1359       0      1       0   0.0  1.8
## 1721 257   2283      0   1 58.26420   f  361       0      0       0   0.5  0.3
## 1729 258   2371      0   1 51.48802   f 2195       0      1       0   0.0  2.1
## 1734 259   2284      0   0 59.96988   f 1979       1      0       0   0.5  8.0
## 1735 260   1674      2   0 74.52430   m    0       0      1       0   0.0  5.6
## 1741 261   2348      0   0 52.36413   f 1883       0      0       0   0.0  2.3
## 1744 262   1850      1   0 42.78713   f  447       0      1       0   0.0  1.0
## 1749 263   1303      1   0 34.87474   f 1182       0      1       0   0.5  1.4
## 1753 264   1542      1   0 44.13963   f  720       0      0       0   0.0 10.6
## 1757 265   1084      1   0 46.38193   f  720       1      1       1   0.5  9.8
## 1764 266   2287      0   1 56.30938   f 2121       0      0       0   0.0  1.2
## 1765 267    179      2   1 70.90760   f    0       1      1       1   1.0  6.6
## 1767 268   1191      2   1 55.39493   f  164       0      1       0   0.5  6.8
## 1774 269   1898      2   0 45.08419   f 1749       0      1       1   1.0 23.8
## 1777 270   2010      1   1 26.27789   f 1910       0      1       1   0.5  1.0
## 1785 271   2238      0   0 50.47228   f 2192       0      1       0   0.5  2.9
## 1791 272   2194      0   1 38.39836   f 1545       0      0       1   0.0  0.3
## 1794 273   1649      1   0 47.41958   f  416       0      1       1   0.0  4.2
## 1799 274   1447      1   1 47.98084   f 1362       0      1       1   0.0  6.5
## 1803 275   2020      0   1 38.31622   f 1301       0      1       1   0.0  2.3
## 1805 276   2147      0   1 50.10815   f  207       0      0       0   0.0  0.9
## 1810 277   2105      0   0 35.08830   f 1065       0      1       0   0.0  2.3
## 1815 278   1996      1   0 32.50376   f  713       0      1       0   0.0 12.6
## 1822 279   2102      0   0 56.15332   f 1791       0      0       0   0.0  0.6
## 1829 280   2081      0   1 46.15469   f 1838       0      0       0   0.0  1.1
## 1830 281     41      2   1 65.88364   f    0       1      0       0   1.0 17.9
## 1834 282   1673      1   0 33.94387   f  744       0      1       1   0.0  1.3
## 1838 283   2095      0   0 62.86105   f  711       0      0       0   0.0  1.3
## 1845 284   2087      0   0 48.56400   f 1838       0      0       0   0.0  1.4
## 1846 285   2070      0   1 46.34908   f    0       0      0       0   0.0  0.8
## 1848 286   2077      0   1 38.85284   f  190       0      1       0   0.0  2.6
## 1852 287   1552      0   1 58.64750   f  772       0      1       0   0.5  4.0
## 1854 288   1067      1   0 48.93634   f  199       0      1       0   0.0  9.0
## 1858 289    799      2   1 67.57290   m  798      NA     NA      NA   0.5 13.3
## 1865 290   2032      0   1 65.98494   f 1824       0      1       0   0.0  2.2
## 1870 291    901      1   1 40.90075   f  881       1      0       0   0.5 12.0
## 1873 292   1785      2   0 50.24504   m 1266       0      1       1   0.0 15.5
## 1875 293   1989      0   0 57.19644   f  196       0      1       1   0.5  5.7
## 1882 294   1971      0   1 60.53662   m 1933      NA     NA      NA   0.5 11.4
## 1884 295    875      1   1 35.35113   m  243       0      0       0   0.0  3.0
## 1887 296   1990      0   0 31.38125   f  344       0      0       0   0.0  0.8
## 1890 297    533      1   1 55.98631   m  351       1      1       0   1.0  2.2
## 1893 298   1969      0   0 52.72553   f  362       0      1       1   0.0  2.0
## 1894 299   1962      0   1 38.09172   f    0       0      0       0   0.0  2.4
## 1896 300    207      2   0 58.17112   f  145       1      1       0   0.5 17.7
## 1899 301   1969      0   0 45.21013   f  463       0      1       0   0.0  0.9
## 1904 302   1940      0   1 37.79877   f 1797       0      0       0   0.0  1.0
## 1908 303   1597      2   0 60.65982   f 1357       1      1       1   1.0  2.1
## 1909 304   1899      0   1 35.53457   f    0       0      0       0   0.0  0.5
## 1914 305   1885      0   0 43.06639   f 1233       0      1       1   0.0  2.0
## 1916 306   1885      0   0 56.39151   f  180       0      1       0   0.0  0.5
## 1921 307   1818      0   0 30.57358   f 1142       0      0       1   0.0  4.2
## 1926 308   1822      0   1 61.18275   f 1145       0      1       0   0.0  1.1
## 1931 309   1663      0   0 58.29979   f 1288       0      0       0   0.0  0.6
## 1936 310   1608      0   1 62.33265   f 1353       0      1       0   0.5  1.8
## 1940 311   1508      0   1 37.99863   f 1098       0      0       0   0.0  0.6
## 1945 312   1457      0   0 33.15264   f 1075       0      0       1   0.5 23.4
##      chol albumin alk.phos    ast platelet protime stage
## 2      NA    2.94     1612    6.2      183    11.2     4
## 11    237    2.67      669   88.0      100    11.5     3
## 15    185    3.25      447   88.4      109    13.3     4
## 22    140    1.83      623  131.8      101    17.0     4
## 28     91    2.09      377  156.0      101    13.9     4
## 34     NA    4.20       NA   60.0       NA    10.5     4
## 41    260    3.59      448   54.0      114    12.0     3
## 49    341    2.47     1203  120.9      238    11.3     4
## 56    418    2.41     2268  221.7      161    13.0     3
## 57    200    2.74      918  147.3      302    11.5     4
## 69     NA    2.31      660  121.0      132    15.1     4
## 71     NA    3.00      737  114.7       98    14.1     4
## 83    221    4.26      751   72.0      176    10.2     4
## 90     NA    2.39       NA   71.0       NA    11.9     4
## 101    NA    2.40       NA  114.0       NA    13.0     4
## 114   306    3.51     1004  120.0      231    11.8     4
## 117   246    2.44      539  141.0      322    12.1     4
## 118   178    2.80      961  280.6      283    12.4     4
## 133   197    3.30      798   59.0      162    11.9     4
## 137    NA    2.40       NA  156.6       NA    19.0     4
## 149    NA    2.40       NA   73.0       NA    13.8     4
## 152    NA    2.37     1756  148.8      182    11.7     4
## 154    NA    2.45      949  167.4      252    21.0     4
## 167   126    1.56      836  229.0      252    11.6     3
## 179    NA    2.83     1560   75.0      148    10.7     4
## 185    NA    1.81       NA  241.0       NA    12.5     4
## 186   175    3.31     3697  101.9       80    12.0     4
## 189    NA    2.59     1257  162.8      143    13.0     4
## 199   242    2.47      830   73.0      163    12.4     4
## 202    NA    2.90     1904  300.7      116    13.1     4
## 214   219    2.89      995  211.0      120    12.6     4
## 230   200    3.32      866   61.0      132    11.1     4
## 240    NA    3.37     1498   85.0      147    10.7     3
## 254   329    2.99      661   97.0      193    11.6     3
## 258   271    3.70     2780  117.8      473    10.5     4
## 269   236    2.76      761   43.0      220    12.3     4
## 271    NA    2.38     1737  218.6      114    13.3     4
## 281    NA    1.90       NA   69.0       NA    11.9     4
## 289   275    2.60     1034  258.9      556    10.3     4
## 304   192    2.88     1195  144.0      222    12.7     4
## 308    NA    2.73     1240  145.7      109    13.6     4
## 324   261    2.34     2337  217.0      152    12.6     4
## 339    NA    3.10      802   53.0       70    12.2     4
## 350    NA    1.90       NA  204.0       NA    16.1     4
## 359   430    3.15       73   70.0      257     9.8     3
## 367    NA    2.75      881  266.6      110    13.4     4
## 374   311    3.26     1420   99.0      151    11.5     4
## 383   235    4.15     1258  150.4      154     9.9     2
## 387    NA    2.31       NA  170.5       NA    11.3     4
## 396   266    2.86      879  187.0       82    15.1     3
## 406   197    2.82      996  134.0      198    13.5     3
## 415    NA    2.90      866  210.8      108    13.5     4
## 418    NA    2.10       NA   99.2       NA    15.3     4
## 423    NA    3.71     1152  179.8      108    12.1     4
## 429    NA    2.90       NA  182.9       NA    12.4     4
## 435    NA    3.35       NA  220.1       NA    12.4     4
## 446    NA    1.50       NA 1205.0       NA    18.4     4
## 462   291    3.68      596   77.0      235    11.5     4
## 469    NA    2.90       NA  130.2       NA    10.2     4
## 482   297    3.50      674   84.0      282    11.4     3
## 496   284    3.78      644   90.0      190    11.6     2
## 506    NA    2.53       NA   52.0       NA    11.5     4
## 509    NA    3.40     4152  252.7      274    11.0     3
## 515    NA    3.45     1424  148.8       NA    11.9     4
## 521    NA    4.10      656   48.1      399     9.3     1
## 534    NA    2.60       NA  101.0       NA    14.2     4
## 544    NA    1.65       NA  264.0       NA    10.5     4
## 558    NA    3.18      929  184.0       88    12.4     4
## 562    NA    3.68     2252  173.6      113    15.1     3
## 575    NA    2.74       NA  142.0       NA    12.5     4
## 586   210    2.73     1004  151.0       95    12.2     3
## 592    NA    3.48     1984  223.2      118     9.6     3
## 607    NA    3.46      420   54.0      257    11.4     3
## 611    NA    1.60       NA  142.6       NA    10.2     4
## 616    NA    3.95     1159  204.6       99    10.0     4
## 617   394    3.08     2132  155.0      165    11.6     4
## 619    NA    2.55     1875  170.5      145    12.6     3
## 623    NA    2.80       NA  251.1       NA    10.1     4
## 634   220    3.11      577   95.0       50    13.0     4
## 638   220    3.02     1416  217.0      381    12.1     4
## 648    NA    2.30       NA   74.0       NA    12.7     4
## 658   210    3.23      283   28.0      180    10.9     4
## 673   209    3.56      375   35.0       84    11.9     4
## 676    NA    3.62      771   74.4      122    10.4     3
## 687    NA    2.31      880  132.0      114    12.3     4
## 688  1600    3.21     2656   82.2      181    10.9     3
## 690    NA    3.98     1556  158.1       41     9.5     3
## 694    NA    3.46     1648  141.1      407     9.6     4
## 698    NA    2.15       NA  196.9       NA    13.7     2
## 707   381    2.08     1806  277.0      217    11.1     3
## 710    NA    2.82     1516  289.9      287    11.6     3
## 711   206    3.13     1626   86.8      145    12.2     4
## 726   338    3.66      606  266.0      187    11.7     4
## 729   196    2.47     1306  196.0      160    11.6     4
## 730    NA    2.64      559  119.4      401    11.7     2
## 744   321    3.46      621   54.0      247    11.0     4
## 748    NA    2.40       NA  133.3       NA    11.5     4
## 762   238    3.91      513   58.0      236    10.6     4
## 775   289    3.81      481   55.0      132    11.3     4
## 779    NA    2.20       NA  124.0       NA    12.3     4
## 791   268    3.09      658   78.0      221    11.8     4
## 803   258    3.31      481   28.0      264    11.1     2
## 804   188    3.67     1273  119.4      110    11.1     4
## 814   337    2.48     1788  282.0      108    12.2     4
## 824    NA    3.48     2036  216.0      207    11.4     3
## 829    NA    3.70       NA   46.0       NA    36.0     4
## 840   237    3.18      545  105.0      245    11.5     3
## 848   224    3.75      429   53.0      170    10.0     1
## 858    NA    3.42      698   64.0      203    11.7     3
## 865   337    2.05     1255   66.0      171    10.8     4
## 873    NA    2.60       NA  266.0       NA    13.4     4
## 884    NA    1.40       NA  214.0       NA    13.2     4
## 889    NA    3.10       NA  128.7       NA    12.6     4
## 900    NA    2.14       NA  144.0       NA    17.3     4
## 912   339    3.79      758  100.0      193    11.2     4
## 923   225    3.86      453   46.0      273    11.6     4
## 928    NA    3.06       NA  244.9       NA    10.5     4
## 935   210    2.13     1028  158.0      138    13.6     4
## 937    NA    3.83     1740   48.1      268     9.2     3
## 945    NA    2.57       NA  173.0       NA    13.3     4
## 946   151    3.08     1112   46.5      213    13.2     4
## 956   296    2.99      729   71.0      183    11.0     3
## 958    NA    2.73      763  148.8      112    12.7     4
## 959   251    3.90      681   57.4      182    10.8     4
## 968    NA    3.20       NA  264.0       NA    12.7     4
## 973    NA    2.81       NA  230.0       NA    13.2     4
## 984   397    3.34     1391  113.0      129    11.7     4
## 989   115    2.31     2023  327.1      133    21.9     4
## 1001  323    3.32      814   53.0      250    11.1     3
## 1007   NA    1.70       NA  182.9       NA    28.0     4
## 1011   NA    2.90      701  139.5      173    13.6     4
## 1017  259    3.73      919   89.0      102    10.3     4
## 1026   NA    3.30       NA   94.0       NA    11.1     4
## 1038  474    2.84     2580  160.0      171    12.8     4
## 1048  257    3.00      561   38.0      408    11.2     2
## 1057  279    3.56      598   48.0      293    11.5     4
## 1069  343    3.01      897   67.0      312    11.4     3
## 1075   NA    2.70       NA  190.7       NA    10.6     4
## 1081  215    2.76     1940   93.0       59    14.0     4
## 1093  274    3.56      812   76.0      231    11.6     4
## 1096   NA    3.50      769  110.1      301    10.6     2
## 1105   NA    2.10       NA  153.0       NA    12.7     4
## 1108  450    2.71     2178  139.5      365    12.0     4
## 1112   NA    3.33     6312  345.7      215    10.0     4
## 1116   NA    3.50     1218   48.1      468    11.0     2
## 1123  268    2.63      926  176.0       92    12.7     4
## 1128  258    3.11      443   46.5      160    10.8     3
## 1134   NA    3.04     3339  215.0      277    11.2     4
## 1137   NA    2.80       NA  148.8       NA    12.9     4
## 1146  299    3.55     1003  170.0      248    12.0     4
## 1157  226    2.36      889   66.0      154    12.2     4
## 1160   NA    3.30       NA  127.1       NA     9.5     3
## 1170  282    3.49      327   37.0      260    11.3     1
## 1171  168    2.56     1056  120.9      108    14.1     3
## 1174   NA    3.73     1496  116.3      319    10.0     4
## 1178   NA    3.56     1625  254.2      128    11.1     3
## 1189  284    3.43     1296  144.0      497    11.3     3
## 1198  844    3.40     1840  198.0      132    12.6     3
## 1202   NA    2.84      443   72.9      204    11.0     4
## 1210  254    3.31      462   53.0      325    11.3     4
## 1221  405    2.80     2052   59.0      266    10.8     3
## 1222  260    3.19      815  127.1      160    12.0     4
## 1225   NA    3.71       NA   27.0       NA    10.1     3
## 1226   NA    3.34     1428  181.4       88    13.3     4
## 1231   NA    2.67       NA  113.0       NA    15.0     4
## 1239  236    3.17     1722  233.0      280    10.5     3
## 1245   NA    3.20       NA  116.0       NA    12.9     4
## 1255  255    3.53      739   58.0      158    12.3     4
## 1260  288    3.25     1836  179.0      235     9.6     3
## 1261  390    3.61     1509   88.4      263     9.0     3
## 1271  280    3.52     1050   49.0      305    11.5     4
## 1278  173    3.10      523   63.0      147    11.4     4
## 1287  148    3.39      545   54.0      238    11.8     4
## 1297  295    3.44     1068   90.0      195    11.9     3
## 1307  216    2.86      451   65.0       98    12.4     4
## 1313   NA    2.26     1367  111.0      192    10.9     4
## 1314  258    4.01      559   43.4      277    10.4     2
## 1320  262    3.58      372   42.0      232    11.0     4
## 1323   NA    4.45     1888  141.1      177    10.1     4
## 1333  345    3.47     1270  202.0      111    12.1     4
## 1334  248    3.58      554   76.0       79    10.3     4
## 1339  228    3.84      351   29.0      495     9.7     1
## 1347   NA    3.02     3964  336.0      345    11.3     4
## 1352   NA    2.34       NA   87.0       NA     9.0     4
## 1357  286    3.16     1818  102.0      188    11.7     4
## 1361  253    3.35     1486   81.0      168    11.8     4
## 1365   NA    2.20       NA  186.0       NA    20.8     4
## 1373  189    3.49      296   35.0      182    11.8     4
## 1378  267    3.35      943   71.0      180     9.8     4
## 1382  286    3.93     1206  176.0      226     9.8     2
## 1383 1092    3.35     3740  147.3      399    15.2     4
## 1393  300    3.46     1007   68.0      210    11.8     3
## 1397  265    2.75     1159  127.0      275    12.4     4
## 1402  167    3.92      733  105.0      281    10.2     3
## 1403  347    3.90     2544  221.7      129    11.5     4
## 1411   NA    2.82       NA  102.0       NA    15.4     4
## 1420  306    3.52     1203  101.0      173    11.1     3
## 1428  385    3.15     1080  103.0      382    11.4     4
## 1431   NA    3.47     1368  217.0      298    10.0     3
## 1442   NA    2.72       NA  161.0       NA    13.4     4
## 1452  209    3.01      933  130.0      102    12.0     4
## 1454  246    3.44      642   79.1       NA    10.7     2
## 1463  178    3.66      366   48.0      150    11.3     2
## 1471   NA    2.10       NA  194.0       NA    13.3     4
## 1476  294    2.82     1132  153.0       95    11.5     3
## 1484  244    3.74      296   35.0      224    11.7     1
## 1491  210    3.30      319   36.0      232    12.0     4
## 1494   NA    3.10       NA  174.0       NA    11.2     4
## 1496   NA    3.18     1233  114.7      303     9.5     2
## 1506  324    2.92      478   55.0      166    11.6     4
## 1514   NA    3.12      386   75.0       68    13.6     3
## 1520   NA    3.63      585   47.0      214    11.0     4
## 1522   NA    4.04      943   80.6      298    10.2     3
## 1526  380    2.79     2388   86.0      374    10.9     4
## 1530   NA    2.93       NA  206.0       NA    12.7     3
## 1537  400    2.28     1746   85.0      145    13.9     4
## 1541  128    3.04     1016  105.0      308    11.8     4
## 1551  273    3.67     1010   63.0      418    10.8     2
## 1557  214    3.15      699  142.0      118    10.0     4
## 1562   NA    2.32       NA  106.0       NA    12.0     4
## 1570   NA    3.40     2199   83.0      183    11.9     4
## 1574   NA    2.40       NA  150.0       NA    12.8     3
## 1575  448    2.43     1833  134.0      210    11.0     4
## 1583  247    3.23     1115  136.0      260    13.2     4
## 1592  275    3.03      819  119.0      125    12.1     2
## 1601  251    3.47      461   54.0      217    10.5     3
## 1605   NA    2.60       NA  296.0       NA    13.3     3
## 1609  199    3.70      430   48.0      186    10.5     3
## 1612   NA    2.37      300  100.0       88    10.9     4
## 1616  224    3.13      314   90.0       78    12.5     4
## 1620  604    2.89     3009  272.0      117    16.4     4
## 1624  199    2.99     1309  149.0      263    11.5     3
## 1625  514    3.06     2622  105.4      284     9.8     4
## 1627   NA    3.35     1461  154.0      274    10.2     2
## 1629   NA    3.94     6665  335.0      287    11.9     3
## 1631  240    3.58      834   87.0      330     9.5     4
## 1633   NA    3.58      920   80.0      141     9.9     3
## 1636  277    3.71     1140  126.0      258     9.6     1
## 1639   NA    3.60       NA   87.0       NA    11.0     4
## 1647  277    4.13      368   37.0      354    11.4     3
## 1651  185    2.16     1225  273.0      211    14.1     4
## 1659   NA    3.87       NA  171.0       NA    13.4     4
## 1661   NA    2.53     2304  224.0      245    10.0     4
## 1665  740    2.58     2220  171.0      201    11.0     4
## 1667   NA    2.98      776   61.0      294     9.6     3
## 1673   55    3.43     1217  124.0      168    11.7     4
## 1677  334    2.87     2595   86.0      153    11.1     4
## 1685  301    3.36      842   62.0      295    12.1     4
## 1688  209    3.71      917  119.0      153    10.5     4
## 1690  340    3.59     2195  131.0      281    11.7     3
## 1691  227    3.61      676   83.0      249     9.9     2
## 1694  283    3.72     1494   91.0      328    10.1     4
## 1702  198    2.48      548  154.0       60    13.2     4
## 1706   NA    3.15     1427  149.0      294    10.9     3
## 1712  170    3.67      464   36.0      206    11.5     3
## 1718  278    3.11     1492  160.0      122    11.4     4
## 1721  339    3.03      314   44.0      272    10.9     2
## 1729  414    3.11     1047   85.0      240    10.9     3
## 1734  429    3.09     1563  156.0      471    11.6     3
## 1735  232    3.59     1120   98.0      248    10.9     4
## 1741  293    3.25      716   72.0      155    11.7     3
## 1744  333    3.21     1190   97.0      227    10.4     3
## 1749  560    2.74     1294  192.0      317    10.9     4
## 1753  308    3.27     3012  145.0      193    12.0     3
## 1757  303    2.89     1184  159.0      190    11.9     4
## 1764  242    3.37      463   39.0      229    11.4     3
## 1765  222    2.33      620  106.0      195    12.1     4
## 1767   NA    2.78      633   66.0       87    11.0     4
## 1774  201    2.70     1010  246.0      117    13.5     4
## 1777  353    3.00      522   57.0      129    11.2     4
## 1785   NA    3.44      828  115.0      168    11.3     4
## 1791  192    3.29      369   72.0      166    10.8     2
## 1794  568    3.37     1556  166.0      247    10.3     4
## 1799  498    2.53     3998  186.0      481    11.7     4
## 1803  832    3.44     2991  116.0      333    11.3     4
## 1805   NA    3.08      712   63.0      130    10.7     2
## 1810  308    3.31     2532   81.0      328    10.6     4
## 1815  420    2.91     1674  193.0      125    11.5     4
## 1822  241    3.47      731   46.0      261    11.5     2
## 1829  313    3.30     1506  102.0      177    11.5     3
## 1830  175    2.10      705  338.0       62    12.9     4
## 1834  276    3.04     1244   80.0      224    10.2     4
## 1838  298    3.40     1005   97.0      397    10.2     4
## 1845  351    3.27      735   76.0      258    11.5     3
## 1846  253    3.48      688   57.0      252    10.0     1
## 1848   NA    3.35     2358  222.0       46     9.8     3
## 1852  402    3.34     1778  136.0      240    10.9     4
## 1854   NA    2.74     2718  155.0      245     9.6     2
## 1858   NA    2.40       NA   92.0       NA    10.2     2
## 1865  269    3.23      683  116.0      225    11.4     4
## 1870  502    2.68     3910  141.0      137    11.5     4
## 1873  337    3.09     1158  140.0       69    13.2     3
## 1875   NA    2.88      942  163.0      183    12.3     4
## 1882   NA    2.37       NA  246.0       NA    12.1     4
## 1884  351    3.75     1333  161.0      229    10.5     4
## 1887  338    2.99      946   67.0      226    10.8     4
## 1890  230    3.65     1577   70.0      152    11.1     4
## 1893  381    3.77     2115  137.0      237    10.8     4
## 1894  342    3.76     1653  150.0      213    10.8     3
## 1896   NA    1.74      572  125.0      167    14.8     4
## 1899  354    3.45     1100   89.0      270    11.4     4
## 1904  301    3.40      940   57.0      284    11.1     3
## 1908   NA    2.65      834   98.0      214    12.5     4
## 1909  219    3.93      663   45.0      246    10.8     3
## 1914   NA    3.08     3018  204.0      206    11.9     3
## 1916   NA    3.43      746   45.0      134    10.7     2
## 1921  258    3.29      895  126.0      377    11.3     2
## 1926  294    3.11     1242  103.0      272    10.9     3
## 1931  250    3.23     1054   90.0      188    11.7     3
## 1936  364    3.19     1350   65.0      272    11.3     3
## 1940  391    3.40     2322  191.0      337    11.4     3
## 1945  741    3.42     3012  200.0      128    13.4     3

Select all male patients that died of the pbc data set. Here we want both conditions to be satisfied, therefore we use the symbol &.

pbc[pbc$sex == "m" & pbc$status == 2, ]      
##      id time status trt      age sex ascites hepato spiders edema bili chol
## 3     3 1012      2   1 70.07255   m       0      0       0   0.5  1.4  176
## 14   14 1217      2   2 56.22177   m       1      1       0   1.0  0.8   NA
## 24   24 4079      2   1 44.52019   m       0      1       0   0.0  2.1  456
## 52   52 2386      2   1 50.54073   m       0      0       0   0.0  6.0  614
## 55   55 1360      2   1 65.76318   m       0      0       0   0.0  1.8  416
## 66   66 4191      2   1 46.45311   m       0      1       0   0.0  1.4  427
## 80   80  890      2   2 67.41136   m       0      1       0   0.0  7.2  247
## 90   90 2689      2   1 33.47570   m       0      0       0   0.0  1.6  660
## 97   97  611      2   2 71.89322   m       0      1       0   0.5  2.0  420
## 100 100  552      2   2 51.46886   m       0      1       0   0.0  2.3  178
## 114 114 3395      2   2 52.82683   m       0      0       0   0.0  3.2  259
## 121 121  191      2   2 67.90691   m       1      1       0   1.0  1.3  151
## 133 133 2796      2   2 62.64476   m       0      0       0   0.0  1.5  331
## 138 138 1297      2   1 51.24983   m       0      1       0   0.0  7.3  426
## 149 149  762      2   1 61.80424   m       0      1       1   0.5  3.0  257
## 152 152 1152      2   1 69.94114   m       0      1       0   0.0  2.3  586
## 154 154  140      2   1 69.37714   m       0      0       1   1.0  2.4  168
## 159 159 1536      2   2 45.76044   m       0      0       0   0.0  2.5  317
## 165 165 1077      2   1 53.30595   m       0      1       0   0.0  4.0  196
## 167 167 1682      2   1 60.95825   m       0      1       0   0.0  0.9  376
## 227 227  999      2   1 58.95140   m       0      0       0   0.0  2.3  316
## 289 289  799      2   1 67.57290   m       0      1       0   0.5  4.0  416
## 330 330 1746      2  NA 54.00137   m      NA     NA      NA   0.0  3.5   NA
## 376 376 1478      2  NA 44.00000   m      NA     NA      NA   0.0  9.5   NA
##     albumin copper alk.phos    ast trig platelet protime stage
## 3      3.48    210    516.0  96.10   55      151    12.0     4
## 14     2.27     43    728.0  71.00   NA      156    11.0     4
## 24     4.00    124   5719.0 221.88  230       70     9.9     2
## 52     3.70    158   5084.4 206.40   93      362    10.6     1
## 55     3.94    121  10165.0  79.98  219      213    11.0     3
## 66     3.70    105   1909.0 182.90  171      123    11.0     3
## 80     3.72    269   1303.0 176.70   91      360    11.2     4
## 90     4.22     94   1857.0 151.90  155      337    11.0     2
## 97     3.26     62   3196.0  77.50   91      344    11.4     3
## 100    3.00    145    746.0 178.25  122      119    12.0     4
## 114    4.30    208   1040.0 110.05   78      268    11.7     3
## 121    3.08     73   1112.0  46.50   49      213    13.2     4
## 133    3.95     13    577.0 128.65   99      165    10.1     4
## 138    3.93    262   2424.0 145.70  218      252    10.5     3
## 149    3.79    290   1664.0 102.30  112      140     9.9     4
## 152    3.01    243   2276.0 114.70  126      339    10.9     3
## 154    2.56    225   1056.0 120.90   75      108    14.1     3
## 159    3.46    217    714.0 130.20  140      207    10.1     3
## 165    3.45     80   2496.0 133.30  142      212    11.3     4
## 167    3.86    200   1015.0  83.70  154      238    10.3     4
## 227    3.35    172   1601.0 179.80   63      394     9.7     2
## 289    3.99    177    960.0  86.00  242      269     9.8     2
## 330    3.63     NA       NA     NA   NA      325    10.3     2
## 376    3.63     NA       NA     NA   NA      292    10.2     3

Select male patients or patients that died of the pbc data set. Here we want one of the two conditions to be satisfied, therefore we use the symbol |. Use to function head() if you do not want to print the full data set.

head(pbc[pbc$sex == "m" | pbc$status == 2, ])
##   id time status trt      age sex ascites hepato spiders edema bili chol
## 1  1  400      2   1 58.76523   f       1      1       1   1.0 14.5  261
## 3  3 1012      2   1 70.07255   m       0      0       0   0.5  1.4  176
## 4  4 1925      2   1 54.74059   f       0      1       1   0.5  1.8  244
## 6  6 2503      2   2 66.25873   f       0      1       0   0.0  0.8  248
## 8  8 2466      2   2 53.05681   f       0      0       0   0.0  0.3  280
## 9  9 2400      2   1 42.50787   f       0      0       1   0.0  3.2  562
##   albumin copper alk.phos    ast trig platelet protime stage
## 1    2.60    156   1718.0 137.95  172      190    12.2     4
## 3    3.48    210    516.0  96.10   55      151    12.0     4
## 4    2.54     64   6121.8  60.63   92      183    10.3     4
## 6    3.98     50    944.0  93.00   63       NA    11.0     3
## 8    4.00     52   4651.2  28.38  189      373    11.0     3
## 9    3.08     79   2276.0 144.15   88      251    11.0     2

Select the serum bilirubin measurements only for female patients of the pbc data set.

pbc[pbc$sex == "f", "bili"]   
##   [1] 14.5  1.1  1.8  3.4  0.8  1.0  0.3  3.2 12.6  1.4  3.6  0.7  0.8  0.7  2.7
##  [16] 11.4  0.7  5.1  3.4 17.4  0.7  5.2 21.6 17.2  0.7  3.6  4.7  1.8  0.8  0.8
##  [31]  1.2  0.3  7.1  3.3  0.7  1.3  6.8  2.1  1.1  3.3  0.6  5.7  0.5  0.8  1.1
##  [46]  0.8  2.6  1.3  1.1  2.3  0.8  0.9  1.3 22.5  2.1  1.2  1.1  0.7 20.0  0.6
##  [61]  1.2  0.5  0.7  8.4 17.1 12.2  6.6  6.3  0.8 14.4  4.5  1.3  0.4  2.1  5.0
##  [76]  1.1  0.6  2.0  5.0  1.4  1.3  3.2 17.4  1.0  1.0  0.9  0.9  2.5  1.1  1.1
##  [91]  2.1  0.6  0.4  0.5  1.9  5.5  2.0  6.7  0.7  3.0  6.5  3.5  0.6  0.6  5.1
## [106]  1.3  1.2  0.5 16.2  0.9 17.4  2.8  1.9  0.7  0.4  0.8  1.1  1.1  1.1  0.9
## [121]  1.0  2.9 28.0  0.7  1.2  1.2  7.2  1.0  0.9  0.5  0.6 25.5  0.6  3.4  0.6
## [136]  2.3  3.2  0.3  8.5  5.7  0.4  1.3  1.2  0.5  1.3  3.0  0.5  0.8  3.2  0.9
## [151]  0.6  1.8  4.7  1.4  0.6  0.5 11.0  0.8  2.0 14.0  0.7  1.3  2.3 24.5  0.9
## [166] 10.8  1.5  3.7  1.4  0.6  0.7  2.1  4.7  0.6  0.5  0.5  0.7  2.5  0.6  0.6
## [181]  3.9  0.7  1.3  1.2  0.5  0.9  5.9  0.5 11.4  0.5  1.6  3.8  0.9  4.5 14.1
## [196]  1.0  0.7  0.5  0.7  4.5  3.3  3.4  0.4  0.9  0.9 13.0  1.5  1.6  0.6  0.8
## [211]  0.4  4.4  1.9  8.0  3.9  0.6  2.1  6.1  0.8  1.3  0.6  0.5  1.1  3.1  0.7
## [226]  1.1  0.5  1.1  3.1  3.2  2.8  1.1  3.4  3.5  0.5  6.6  6.4  3.6  1.0  1.0
## [241]  0.5  2.2  1.6  2.2  1.0  1.0  5.6  0.5  1.6 17.9  1.3  1.1  1.3  0.8  2.0
## [256]  6.4  8.7  1.4  3.2  8.5  0.8  1.1  2.4  5.2  1.0  0.7  1.0  0.5  2.9  0.6
## [271]  0.8  0.4  0.4  1.7  2.0  6.4  0.7  1.4  0.7  0.7  0.8  0.7  5.0  0.4  1.1
## [286]  0.6  0.6  1.8  1.5  1.2  1.0  0.7  3.1 12.6  2.8  7.1  0.6  2.1  1.8 16.0
## [301]  0.6  5.4  9.0  0.9 11.1  8.9  0.5  0.6  3.4  1.4  2.1 15.0  0.6  1.3  1.3
## [316]  1.6  2.2  3.0  0.8  0.8  1.8  5.5 18.0  0.6  2.7  0.9  1.3  1.1 13.8  4.4
## [331] 16.0  7.3  0.6  0.7  0.7  1.7  2.2  1.8  3.3  2.9 14.0  0.8  1.3  0.7 13.6
## [346]  0.9  0.7  1.2  0.4  0.7  2.0  1.4  1.6  0.5  7.3  8.1  0.5  4.2  0.8  2.5
## [361]  4.6  1.0  4.5  1.9  0.7  1.5  0.6  1.0  0.7  1.2  0.9  1.6  0.8  0.7

Select all rows of the pbc data set where the serum bilirubin measurements are smaller that 10.

head(pbc[pbc$bili < 10, ])
##   id time status trt      age sex ascites hepato spiders edema bili chol
## 2  2 4500      0   1 56.44627   f       0      1       1   0.0  1.1  302
## 3  3 1012      2   1 70.07255   m       0      0       0   0.5  1.4  176
## 4  4 1925      2   1 54.74059   f       0      1       1   0.5  1.8  244
## 5  5 1504      1   2 38.10541   f       0      1       1   0.0  3.4  279
## 6  6 2503      2   2 66.25873   f       0      1       0   0.0  0.8  248
## 7  7 1832      0   2 55.53457   f       0      1       0   0.0  1.0  322
##   albumin copper alk.phos    ast trig platelet protime stage
## 2    4.14     54   7394.8 113.52   88      221    10.6     3
## 3    3.48    210    516.0  96.10   55      151    12.0     4
## 4    2.54     64   6121.8  60.63   92      183    10.3     4
## 5    3.53    143    671.0 113.15   72      136    10.9     3
## 6    3.98     50    944.0  93.00   63       NA    11.0     3
## 7    4.09     52    824.0  60.45  213      204     9.7     3

Array indexing

Create an array

ar <- array(data = 1:19, dim = c(3, 3, 2))
ar 
## , , 1
## 
##      [,1] [,2] [,3]
## [1,]    1    4    7
## [2,]    2    5    8
## [3,]    3    6    9
## 
## , , 2
## 
##      [,1] [,2] [,3]
## [1,]   10   13   16
## [2,]   11   14   17
## [3,]   12   15   18

Select the 2nd row of each matrix

ar[2, , ]
##      [,1] [,2]
## [1,]    2   11
## [2,]    5   14
## [3,]    8   17

Select the 2nd column of each matrix

ar[, 2, ]
##      [,1] [,2]
## [1,]    4   13
## [2,]    5   14
## [3,]    6   15

Select the 2nd row and column of the first matrix

ar[2, 2, 1]
## [1] 5

List indexing

Create a list with 3 elements:

  • 1st element: all pbc$id
  • 2nd element: pbc$bili for males
  • 3rd element: pbc$age > 30
myList <- list(pbc$id, pbc$bili[pbc$sex == "m"], pbc$age[pbc$age > 30])

Select the second element (the output should be a list).

myList[2]
## [[1]]
##  [1] 1.4 0.8 0.6 2.1 1.9 6.0 1.8 0.7 0.6 1.4 7.2 1.6 2.0 1.8 2.3 3.2 3.5 1.3 0.6
## [20] 1.5 7.3 3.0 2.3 2.4 2.5 4.0 0.9 0.9 2.3 7.1 5.6 4.0 8.6 6.6 2.4 1.2 1.3 3.5
## [39] 0.9 9.5 1.7 1.7 3.0 1.1

Select the third element (the output should be a vector).

myList[[3]]
##   [1] 58.76523 56.44627 70.07255 54.74059 38.10541 66.25873 55.53457 53.05681
##   [9] 42.50787 70.55989 53.71389 59.13758 45.68925 56.22177 64.64613 40.44353
##  [17] 52.18344 53.93018 49.56057 59.95346 64.18891 56.27652 55.96715 44.52019
##  [25] 45.07324 52.02464 54.43943 44.94730 63.87680 41.38535 41.55236 53.99589
##  [33] 51.28268 52.06023 48.61875 56.41068 61.72758 36.62697 55.39220 46.66940
##  [41] 33.63450 33.69473 48.87064 37.58248 41.79329 45.79877 47.42779 49.13621
##  [49] 61.15264 53.50856 52.08761 50.54073 67.40862 39.19781 65.76318 33.61807
##  [57] 53.57153 44.56947 40.39425 58.38193 43.89870 60.70637 46.62834 62.90760
##  [65] 40.20260 46.45311 51.28816 32.61328 49.33881 56.39973 48.84600 32.49281
##  [73] 38.49418 51.92060 43.51814 51.94251 49.82615 47.94524 46.51608 67.41136
##  [81] 63.26352 67.31006 56.01369 55.83025 47.21697 52.75838 37.27858 41.39357
##  [89] 52.44353 33.47570 45.60712 76.70910 36.53388 53.91650 46.39014 48.84600
##  [97] 71.89322 48.46817 51.46886 44.95003 56.56947 48.96372 43.01711 34.03970
## [105] 68.50924 62.52156 50.35729 44.06297 38.91034 41.15264 55.45791 51.23340
## [113] 52.82683 42.63929 61.07050 49.65640 48.85421 54.25599 35.15127 67.90691
## [121] 55.43600 45.82067 52.88980 47.18138 53.59890 44.10404 41.94935 63.61396
## [129] 44.22724 62.00137 40.55305 62.64476 42.33539 42.96783 55.96167 62.86105
## [137] 51.24983 46.76249 54.07529 47.03628 55.72621 46.10267 52.28747 51.20055
## [145] 33.86448 75.01164 30.86379 61.80424 34.98700 55.04175 69.94114 49.60438
## [153] 69.37714 43.55647 59.40862 48.75838 36.49281 45.76044 57.37166 42.74333
## [161] 58.81725 53.49760 43.41410 53.30595 41.35524 60.95825 47.75359 35.49076
## [169] 48.66256 52.66804 49.86995 30.27515 55.56742 52.15332 41.60986 55.45243
## [177] 70.00411 43.94251 42.56810 44.56947 56.94456 40.26010 37.60712 48.36140
## [185] 70.83641 35.79192 62.62286 50.64750 54.52704 52.69268 52.72005 56.77207
## [193] 44.39699 57.04038 44.62697 35.79740 40.71732 32.23272 41.09240 61.63997
## [201] 37.05681 62.57906 48.97741 61.99042 72.77207 61.29500 52.62423 49.76318
## [209] 52.91444 47.26352 50.20397 69.34702 41.16906 59.16496 36.07940 34.59548
## [217] 42.71321 63.63039 56.62971 46.26420 61.24298 38.62012 38.77070 56.69541
## [225] 58.95140 36.92266 62.41478 34.60917 58.33539 50.18207 42.68583 34.37919
## [233] 33.18275 38.38193 59.76181 66.41205 46.78987 56.07940 41.37440 64.57221
## [241] 67.48802 44.82957 45.77139 32.95003 41.22108 55.41684 47.98084 40.79124
## [249] 56.97467 68.46270 78.43943 39.85763 35.31006 31.44422 58.26420 51.48802
## [257] 59.96988 74.52430 52.36413 42.78713 34.87474 44.13963 46.38193 56.30938
## [265] 70.90760 55.39493 45.08419 50.47228 38.39836 47.41958 47.98084 38.31622
## [273] 50.10815 35.08830 32.50376 56.15332 46.15469 65.88364 33.94387 62.86105
## [281] 48.56400 46.34908 38.85284 58.64750 48.93634 67.57290 65.98494 40.90075
## [289] 50.24504 57.19644 60.53662 35.35113 31.38125 55.98631 52.72553 38.09172
## [297] 58.17112 45.21013 37.79877 60.65982 35.53457 43.06639 56.39151 30.57358
## [305] 61.18275 58.29979 62.33265 37.99863 33.15264 60.00000 64.99932 54.00137
## [313] 75.00068 62.00137 43.00068 46.00137 44.00000 60.99932 64.00000 40.00000
## [321] 63.00068 34.00137 52.00000 48.99932 54.00137 63.00068 54.00137 46.00137
## [329] 52.99932 56.00000 56.00000 55.00068 64.99932 56.00000 47.00068 60.00000
## [337] 52.99932 54.00137 50.00137 48.00000 36.00000 48.00000 70.00137 51.00068
## [345] 52.00000 54.00137 48.00000 66.00137 52.99932 62.00137 59.00068 39.00068
## [353] 67.00068 58.00137 64.00000 46.00137 64.00000 40.99932 48.99932 44.00000
## [361] 59.00068 63.00068 60.99932 64.00000 48.99932 42.00137 50.00137 51.00068
## [369] 36.99932 62.00137 51.00068 52.00000 44.00000 32.99932 60.00000 63.00068
## [377] 32.99932 40.99932 51.00068 36.99932 59.00068 55.00068 54.00137 48.99932
## [385] 40.00000 67.00068 68.00000 40.99932 68.99932 52.00000 56.99932 36.00000
## [393] 50.00137 64.00000 62.00137 42.00137 44.00000 68.99932 52.00000 66.00137
## [401] 40.00000 52.00000 46.00137 54.00137 51.00068 43.00068 39.00068 51.00068
## [409] 67.00068 35.00068 67.00068 39.00068 56.99932 58.00137 52.99932

Select the third element (the output should be a vector).
Then, from the third element, select the elements that are smaller than 20. Tips: do not try doing everything in one step.

newData <- myList[[3]]
newData[newData < 20]
## numeric(0)

Create a list with 3 elements and give them names:

  • 1st element - all_id: all pbc$id
  • 2nd element - bili_male: pbc$bili for males
  • 3rd element - young: pbc$age < 30
myList <- list(all_id = pbc$id, bili_male = pbc$bili[pbc$sex == "m"], young = pbc$age[pbc$age < 30])

Select all_id by name indexing.

myList$all_id
##   [1]   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18
##  [19]  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36
##  [37]  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54
##  [55]  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72
##  [73]  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90
##  [91]  91  92  93  94  95  96  97  98  99 100 101 102 103 104 105 106 107 108
## [109] 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
## [127] 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
## [145] 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162
## [163] 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
## [181] 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198
## [199] 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216
## [217] 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234
## [235] 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252
## [253] 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270
## [271] 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288
## [289] 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306
## [307] 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324
## [325] 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342
## [343] 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360
## [361] 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378
## [379] 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396
## [397] 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414
## [415] 415 416 417 418