[R] coxph error

[Spencer Graves]

      Have you considered "try"? 

      hope this helps.  spencer graves

Fredrick Schumacher wrote:

>R list:
>
> 
>
>I am using a 'for' loop to run a number of different models (stratified
>by different variables) with coxph.   The data becomes sparse when some
>strata are used causing the model to become unstable.  The following
>error occurs and the analysis is terminated.
>
> 
>
>  
>
>>Error in fitter(X, Y, strats, offset, init, control, weights = weights,
>>    
>>
>: 
>
>      (converted from warning) Loglik converged before variable  1 ;
>beta may be infinite. 
>
> 
>
>Is there any way to have R skip the models without convergence and apply
>'NA' to the results, then go on to the other models?
>
> 
>
>The same situation occurs with windows and unix versions.
>
> 
>
>Thanks,
>
>Fred
>
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