Dear Professor Terry Therneau, Sorry for another naive question about R. Some one suggested me to use mathematica to analyze Cox proportional hazard model. For example estimate the coefficients, and calculate the survival and hazard function. But I think that may be not possible, especially that all the six covariates in my model are time-dependent.
Could you please give me any opinion on this? Koshihaku -- View this message in context: http://r.789695.n4.nabble.com/How-does-the-survfit-coxph-calculate-the-survival-value-tp3847179p3853994.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.