On Aug 9, 2010, at 8:17 PM, Hongying Li wrote:
Hello,
when using coxph function from survival package, what do you do if
you encounter such problem like:
Warning message:
In fitter(X, Y, strats, offset, init, control, weights = weights, :
Loglik converged before variable 3,4 ; beta may be infinite.
It generally does not signal a problem. You can, of course, check to
see if any betas are unexpectedly large. I have never found that
unusually large estimates after such a warning.
--
David Winsemius, MD
West Hartford, CT
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