Hi,
basehaz() in survival package is said to estimate the baseline cumulative hazard from coxph(), but it actually calculate cumulative hazard by -log(survfit(coxph.object)). But survfit() calculate survival based on MEAN covariate value, not covariate value of 0. I thought baseline cumulative hazard means when covariate value is at 0. Did I misunderstand something? Thanks John ______________________________________________ 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.
