On this R-data statistics page, you will find information about the twins data set which pertains to data from Exercise 7.14, p225. The twins data set is found in the KMsurv R package. You can load the twins data set in R by issuing the following command at the console data("twins"). This will load the data into a variable called twins. If R says the twins data set is not found, you can try installing the package by issuing this command install.packages("KMsurv") and then attempt to reload the data. If you need to download R, you can go to the R project website. You can download a CSV (comma separated values) version of the twins R data set. The size of this file is about 250 bytes.

data from Exercise 7.14, p225

Description

The twins data frame has 24 rows and 3 columns.

Format

This data frame contains the following columns:

id

Twin number

age

Age of twin's death from CHD, months

death

Death (male twin) from CHD indicator (1=dead from CHD, 0=alive or other cause of death)

gender

1=male, 2=female

Source

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

Examples

data(twins)

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Dataset imported from https://www.r-project.org.