\HeaderA{veteran}{Veterans' Administration Lung Cancer study}{veteran}
\keyword{datasets}{veteran}
\begin{Description}\relax
Randomised trial of two treatment regimens for lung
cancer. This is a standard survival analysis data set
\end{Description}
\begin{Usage}
\begin{verbatim}data(veteran)\end{verbatim}
\end{Usage}
\begin{Format}\relax
\Tabular{ll}{
trt:& 1=standard 2=test\\
celltype:& 1=squamous,  2=smallcell,  3=adeno,  4=large\\
time:& survival time\\
status:& censoring status\\
karno:& Karnofsky performance score (100=good)\\
diagtime:& months from diagnosis to randomisation\\
age:& in years\\
prior:& prior therapy 0=no, 1=yes\\
}
\end{Format}
\begin{Source}\relax
Kalbfleisch and Prentice "The Statistical Analysis of Failure Time Data"
\end{Source}