> I have a model with quant vars only and the error message does not make sense:
Could you tell us what version of S and of the survival package you are using? You can get this with sessionInfo(), see the posting guide for details. This would help me identify the issue. I was planning to post an update to CRAN this weekend that has changes to survfit.coxph, addressing a different issue than yours -- models with a strata by covariate interaction --- but this would be a very good time to address your issue too if it is a code bug. Terry Therneau (author of survival). ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
