VA {MASS} | R Documentation |
Veteran's Administration lung cancer trial from Kalbfleisch & Prentice.
VA
A data frame with columns:
stime
survival or follow-up time in days.
status
dead or censored.
treat
treatment: standard or test.
age
patient's age in years.
Karn
Karnofsky score of patient's performance on a scale of 0 to 100.
diag.time
times since diagnosis in months at entry to trial.
cell
one of four cell types.
prior
prior therapy?
Kalbfleisch, J.D. and Prentice R.L. (1980) The Statistical Analysis of Failure Time Data. Wiley.
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.