rats

48 rats were injected with a carcinogen, and then
  randomized to either drug or placebo.  The number of tumors ranges
  from 0 to 13; all rats were  censored at 6 months after randomization.

datasets

survival

survival analysis: descriptive statistics, two-sample
  tests, parametric accelerated failure models, Cox model. Delayed entry
  (truncation) allowed for all models; interval censoring for parametric
  models. Case-cohort designs.

Thomas Lumley

Survival analysis, including penalised likelihood.

rats function

<tabular>ll</tabular>{
    rat:	idrx:	treatment,(1=drug, 0=control) observation:	within ratstart:	entry timestop:	exit timestatus:	event status}

format

MH Gail, TJ Santner, and CC Brown (1980),
  An analysis of comparative carcinogenesis experiments based on
  multiple times to tumor.
  <em>Biometrics</em> <b>36</b>, 255--266.

rats: Rat data from survival5

Description

Usage

Arguments

format

source