Surv CDISC and estimate cox function

[bailliem]

Idea

An idea to ease the implementation of survival methods (even outside this package) with SDISC data. The big difference from CDSIC standard and the notation used throughout survival analysis in R is the way the outcomes are defined: CDISC creates an indicator for the censoring and the {survival} package (and many others) uses an indicator for the event.

We could export a function similar to survival::Surv() that uses the censoring indicator.

Surv_CNSR <- function(time, event) survival::Surv(time = time, event = 1 - event)

# we can use it like this
survival::coxph(Surv_CNSR(AVAL, CNSR) ~ SEX, adtte)

A bigger bonus if we could somehow set default names survival::coxph(Surv_CNSR(time = AVAL, event = CNSR)