> I was trying to fit a parametric survival model with Weibull distribution on
> counting process type of data (NOT interval censor data), but the
> survreg(Surv(T1,T2,event)~x,data,dist="weibull") did not seem to work.
> Anyone can help me with that?
The survreg function does not support time-dependent covariates or multiple
events per subject, i.e., 2 of primary reasons to use (start, stop] data. I've
thought about it, and it is on my "someday" list. It is a fairly difficult
update though, so "someday" may be a loooooong way away. (A major upgrade to
coxme is first, to support more models and an lmer-like syntax).
Terry Therneau
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