
VA  Veteran's Administration Lung Cancer Trial  Description Veteran's Administration lung cancer trial from Kalbfleisch & Prentice.  Usage 
VA
 Format 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?    Source Kalbfleisch, J.D. and Prentice R.L. (1980) The Statistical Analysis of Failure Time Data. Wiley.  References Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer. 

    Copyright (
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