HI,
I am interested in calculating hazard ratio of the stratified groups defined
by me.
library(survcomp)
binscores <-
cut(scores.train,c(-1000,-1,1,1000),c("low","intermediate","high"))
dd <- data.frame("surv.time"=OS, "surv.event"= status, "strat"=binscores)
km.coxph.plot(formula.s=Surv(surv.time, surv.event) ~ strat)
How do I calculate hazard ratio between the groups defined by me as above?
Thanks very much,
Angel
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