Data on 25 individuals with inoperative lung cancer
See Problem 4.7.4
Data can be read in free format. The variables represented in the dataset are as follows: 

Days to death 
Death indicator (1=dead), complete follow-up on all patients 
Days to 3/31/80 or death (interim analysis) 
Death indicator as of 3/31/80 (1=dead, 0=alive) 
THE DATA 
139 1 139 1
304 1 304 1
193 1 193 1
248 1 248 1
 27 1  27 1
210 1 210 1
134 1 134 1
203 1 203 1
724 1 320 0
 50 1  50 1
511 1 306 0
 22 1  22 1
561 1 290 0
580 1 276 0
136 1 136 1
308 1 231 0
224 1 217 0
482 1 198 0
191 1 186 0
144 1 144 1
 68 1  68 1
683 1 131 0
256 1 121 0
441 1 108 0
101 1  99 0