twins: 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.