Jean-Pierre Bresciani <bresciani <at> tuebingen.mpg.de> writes:
> is there a specific/appropriate function/package to perform post hoc tests > when running a two way repeated measures anova? I'm looking for something > that will be equivalent to the 'TukeyHSD()' for between subjects anova (with > 'aov()'). For one way repeated measures anova, the 'pairwise.t.test()' > function seems to work correctly but the results are questionable for two+ > way anovas, as if the adjustment of the p values for multiple comparisons > was not correct. Classical repeated measurement has fallen a bit out of favor, because mixed models as in lme (package nlme) and lmer(package lme4) are MUCH more flexible and in general more stable when data are missing. So I recommend to switch to lme (better documented, currently), and use http://finzi.psych.upenn.edu/R/Rhelp02a/archive/20725.html as a starter when trying to do multiple comparisons. Dieter Menne (Tübingen) ______________________________________________ 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.
