function1: Internal function for function var.expDeath
Description
This function was only meant to be used by the function var.expDeath. It provides many objects that are needed for the estimation of the variance of the expected number of deaths.
Usage
function1(x)
Value
The function function1 returns a list containing many objects that are used by the function var.expDeath.
Arguments
x
x is an object of class coxph.
Author
Denis Talbot, Thierry Duchesne, Jacques Brisson, Nathalie Vandal.