search for: resolov

...deals with those who want to use survival functions but not use library(survival). Now to the question. I had always (naively) assumed that the Surv(), strata(), etc calls within a coxph formula would be resolved first within the survival namespace. I realize now that this is not true: they get resoloved within model.frame. If a user has their own Surv, it will get used. For ultimate safety, I am thinking of extending the above to all of the internal survival functions that might be used in a formula: Surv, strata, pspline, cluster, ratetable (I think that?s all). An intitial limited test loo...