Re: [R] Capturing coxph warnings and errors

From: Daniel Brewer <>
Date: Wed, 18 Jun 2008 13:35:44 +0100


I have enclosed the data load("coxtest.rdata") to get it into R. Here is the command line to produce the error


As you can see the values are almost all the same value, which is probably causing the problem.


Terry Therneau wrote:
> Error in fitter(X, Y, strats, offset, init, control, weights = weights, :
> NA/NaN/Inf in foreign function call (arg 6)
> In addition: Warning message:
> In fitter(X, Y, strats, offset, init, control, weights = weights, :
> Ran out of iterations and did not converge
> -------
> The warning message could be ignored. However, I am very interested in the
> error message; it is one I have not seen before. If you could recreate the data
> set that produces it and send it to be that would be useful.
> Terry Therneau
> (author of coxph)

Daniel Brewer, Ph.D.

Institute of Cancer Research
Molecular Carcinogenesis

The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company Limited by Guarantee, Registered in England under Company No. 534147 with its Registered Office at 123 Old Brompton Road, London SW7 3RP.

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