\name{gastric} \alias{gastric} \title{Gastric Cancer Data} \description{ Survival of gastric cancer patients under chemotherapy and chemotherapy-radiotherapy combination. } \usage{data(gastric)} \format{ A data frame containing 90 observations on the following variables. \tabular{ll}{ \code{futime} \tab Follow-up time, in days.\cr \code{status} \tab Censoring status.\cr \code{trt} \tab Factor indicating the treatments: 1 -- chemothrapy, 2 -- combination. } } \source{ Moreau, T., O'Quigley, J., and Mesbah, M. (1985), A global goodness-of-fit statistic for the proportional hazards model. \emph{Applied Statistics}, \bold{34}, 212-218. } \keyword{datasets}