[R] Capturing coxph warnings and errors

[Daniel Brewer]

Hi,

I have a script that takes a subset of genes on a microarray and tries
to fit a coxph model to the expression values for each gene.  This seems
to work fine but in some cases it produces warnings and/or errors.

For example:
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

In this situation I would like to:
1) Deal with it so that it the scripts result data.frame the p value etc
are set to NA.
2) Suppress the Error and Warning messages

What is the best way to do this?

Thanks

-- 
**************************************************************
Daniel Brewer, Ph.D.

Institute of Cancer Research
Molecular Carcinogenesis
Email: daniel.brewer at icr.ac.uk
**************************************************************

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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