Hei, I have a one simple question which does not seem to be that simple as I cannot find any solution/answer:
Is it possible to compare multiple survival curves in R with survdiff-function when there is interaction term involved in predictor variables (and this interaction is significant)? Example: survdiff(Surv(death,status)~treatment*gapsize) R is making "problems" with it ie.e. it does not want to perform the test. And all the examples I have found so far, may involve multiple predictor variables but in additive format (e.g. treatment+gapsize). If survdiff is not the way to go, are there any other solutions in order to compare statistically the curves i.e. if they differ significantly from each other? I would really appreciate if someone can answer! Cheers, Minna -- View this message in context: http://r.789695.n4.nabble.com/Survival-analysis-and-comparing-survival-curves-tp4414316p4414316.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.
