To save others a little hunting, you can read the vignette online at http://cran.r-project.org/web/packages/survival/vignettes/tests.pdf
Hadley On Mon, Jan 20, 2014 at 11:47 AM, Terry Therneau <thern...@mayo.edu> wrote: > Someone asked a question about this on the list a couple months ago. I > replied that I didn't know any sound basis for it, and the counter-reply was > "SAS has it". Grant applications were due and I got testy, so there was no > further progress at that point. > As the author of the survival package I really did want to understand the > issue however. I've now done my homework, and the result is contained in a > 30+ page vignette that has been added to the most recent release of the > package. The short summary: I was suspicious before, now I know for certain > that it is misguided, and the phreg implementation of the idea is worse. > If you are interested take a look. If significant debate arises about the > statistical issues therein I don't think R-help is quite the right forum for > discussion, and will entertain any idea wrt a more appropriate venue. > Rehashing long and old standing controversies about type 3 for linear models > is, however, not exciting to me. > > Terry Therneau > > ______________________________________________ > 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. -- http://had.co.nz/ ______________________________________________ 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.
