On Oct 24, 2012, at 4:33 PM, Charles Determan Jr <[email protected]> wrote:
> This is more of a general question without data. After doing 'survdiff', > from the 'survival' package, on strata including four groups (so 4 curves > on a Kaplan Meier curve) you get a chi squared p-value whether to reject > the null hypothesis or not. Is there a method to followup with pairwise > testing on the respective groups? I have searched the library but have > come up with nothing. Perhaps I am mistaken in something here. > > Regards, > Charles Take a look at ?p.adjust, which provides a generic framework for multiple pairwise comparison adjustment methods. The most conservative, but not always the best approach, would of course be Bonferroni. Regards, Marc Schwartz ______________________________________________ [email protected] 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.
