Dear R users, I am conducting multiple comparisons among 12 groups (after a significant F-test) that are heteroscedastic (as judged by a significant Levene's test). It seems from the literature that the Games-Howell post-hoc test is the most appropriate for these data - but, I can't seem to locate a function on the R-site or CRAN or the help lists that implements this test in any R package. I'm unsure whether the TukeyHSD test is tolerant of heteroscedasticity - I think not, and I know Hochberg's isn't. Does anyone know of a test available in R that is suitable for these data? Thanks a lot.
Steve -- View this message in context: http://www.nabble.com/Games-Howell-function-for-post-hoc-multiple-comparisons-tp22176324p22176324.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.
