[R] conditional gap time frailty cox model for recurrent events
elisabetta.petracci at gmail.com
Mon Sep 5 11:42:40 CEST 2016
I am fitting a conditional gap time frailty cox model weighting
observations by means of inverse probability time dependent weigths.
Attached find the self-explaining dataset.
I have used the following sintax:
And I get the following warning:
In coxpenal.fit(X, Y, strats, offset, init = init, control, weights =
Inner loop failed to coverge for iterations 3 4
I have tried to:
- leave out the weights but I get the error anyway
- to randomly select a subset of patients and I don't get the error. This
seems to suggest that the problem is with some observations.
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