data from Exercise 7.13, p225

Description

The rats data frame has 50 rows and 4 columns.

Format

This data frame contains the following columns:

time

Time to tumor development

tumor

Indicator of tumor development (1=yes, 0=no)

trt

Treatment (1=treated with drug, 0=given placebo)

litter

Litter

Source

Klein and Moeschberger (1997) Survival Analysis Techniques for Censored and truncated data, Springer.

Examples

data(rats)