[R] prediction survival curves for coxph-models; how to extract the right strata per individual

[Terry Therneau]

It would help me to give advice if I knew what you wanted to do with the new curves.  
Plot, print, extract?

A more direct solution to your question will appear in the next release of the code, btw.

Terry T.


On 07/25/2013 05:00 AM, r-help-request at r-project.org wrote:
> My problem is:
>
>
>
> I have a coxph.model with several strata and other covariables.
>
> Now I want to fit the estimated survival-curves for new data, using
> survfit.coxph.
>
> But this returns a prediction for each stratum per individual. So if I
> have 15 new individuals and 10 strata, I have 150 fitted surivival curves
> (or if I don't use the subscripts I have 15 predictions with the curves
> for all strata pasted together)
>
>
>
> Is there any possibility to get only the survival curves for the stratum
> the new individual belongs to?
>
>