SMPracticals (version 1.3-1)

mice: Mice Deaths from Radiation

Description

RFM male mice were exposed to 300 rads of x-radiation at 5--6 weeks of age. The causes of death were thymic lymphoma, reticulum cell sarcoma, and other. Some of the mice were kept in a conventional environment, and the others in a germ-free environment.

Usage

data(mice)

source

Hoel, D. G. and Walburg, H. E. (1972) Statistical analysis of survival experiments. Journal of the National Cancer Institute, 49, 361--372.

References

Davison, A. C. (2003) Statistical Models. Cambridge University Press. Page 200.

Examples

data(mice)
library(survival)
fit <- survfit(Surv(y,status)~cause,data=mice[1:95,]) # first group
plot(fit,lty=c(3,2,1))