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obtain
2013 Jan 31
1
obtainl survival curves for single strata
Dear useRs,
What is the syntax to obtain survival curves for single strata on many subjects?
I have a model based on Surv(time,response) object, so there is a single row per subject and no start,stop and no switching of strata.
The newdata has many subjects and each subject has a strata and the survival based on the subject risk and the subject strata is needed.
If I do
newpred <-