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