The cosmesis data frame has 95 rows and 3 columns.
A data frame with the following 3 variables.
left end point of the cosmetic deterioration interval
right end point of the cosmetic deterioration interval
treatment indicator. It is zero for those that received radiotherapy
Borrowed from package
Icens by Alain Vandal and Robert Gentleman.
A semiparametric model for regression analysis of interval-censored failure time data, D. M. Finkelstein and R. A. Wolfe, 1985, Biometrics.