vets.dat

Survival data for 137 patients from Veteran's
Administration Lung Cancer Trial.

taken from pages 301-304 of 
Kleinbaum DG  Survival Analysis: A self-learning text.
Springer, New York, 1996.

"Data from Kalbfleisch, J., and Prentice, R.,
The Statistical Analysis of Failure Time Data,
John Wiley and Sons, New York, 1980.

 1 treatment           1 = standard,   2 = test
 2 cell type 1         1 = large,      0 = other
 3 cell type 2         1 = adeno,      0 = other
 4 cell type 3         1 = small,      0 = other
 5 cell type 4         1 = squamous,   0 = other
 6 survival time       days
 7 performance status  0 = worst..   100 = best
 8 disease duration    months
 9 age                 years
10 prior therapy       0 = none,      10 = some
11 status              0 = censored,   1 = Died "