[R] Frailty variable and cluster function in coxph
britt_dijkstra at hotmail.com
Tue Jul 31 14:04:53 CEST 2012
I have a dataset with the variables:
id start stop event tempdiff straling
The data contains recurrent event, so for each id more than one interval is
and more than one event can occur.
I have fitted the next model:
mod1 = coxph(Surv(start,stop,event) ~ tempdiff3 + straling3 + frailty(uid) +
cluster(uid) , deel1)
The model will work when I use the cluster and the frailty function
seperately, but in combination
I get this error message:
residuals.coxph(fit2, type = "dfbeta", collapse = cluster, weighted = TRUE)
length of 'dimnames'  not equal to array extent
Is there I was I could use both functions in the same analysis?
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