Peter: Bravo!
On Mon, Apr 4, 2016 at 10:10 AM, peter dalgaard <pda...@gmail.com> wrote: > That's not an R question but a stats question, but I wouldn't do it. For one > thing: The variance of binary data is a function of the mean, so the research > question is dubious in the first place. Secondly, the test is based on > ranking and comparing absolute differences from the group median, which for > binary data is generally 0 or 1, so all absolute differences will be 1.... "Put differently, the results are more than likely to be complete rubbish." Again, probably not appropriate, but anyway: Fortune Nomination! Cheers, Bert > > -pd > >> On 04 Apr 2016, at 11:48 , emeline mourocq <emeline.mour...@uzh.ch> wrote: >> >> Hello, >> >> >> >> I investigate survival until the following year (0,1) and I wish to test if >> the variance in survival for two or more groups are significantly different >> from each other. >> >> >> >> I read that the Fligner-Killeen test is a non-parametric test which is very >> robust against departures from normality but is it correct (valuable >> technique for publication) to use it on binary data? >> >> >> >> In other words, can I use >> fligner.test(survival~categorical_predictor,data=mydata) when survival is >> binary (0,1)? >> >> >> >> Best regards >> >> Emeline >> >> >> >> >> >> --- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see >> 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. > > -- > Peter Dalgaard, Professor, > Center for Statistics, Copenhagen Business School > Solbjerg Plads 3, 2000 Frederiksberg, Denmark > Phone: (+45)38153501 > Office: A 4.23 > Email: pd....@cbs.dk Priv: pda...@gmail.com > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
