On Thu, Jan 8, 2009 at 5:40 AM, retama <retama1...@gmail.com> wrote: > > Hi! > > I have been working several years with R but it's my first public question. > I hope I'll be clear :) . > > This question is related to obtaining letter-based representation of > non-parametric pairwise comparisons. > > I have a dataframe with this structure (but with quite more rows and cols): > > A B C factor > 1 2 2 one > 2 1 2 one > 2 2 3 two > 2 3 2 two > 1 4 2 three > 9 8 1 three > > I have no normality, so I did a kruskal test which showed significant > differences in some cases. As post hoc pairwise comparisons (the idea is to > make an equivalent to Tukey test after an ANOVA) I tried with a paired > wilcoxon test with the Bonferroni's correction (pairwise.wilcox.test(A, > factor, p.adj="bonf") and other for B, and so on) and, now, I need to modify > the output to show a letter-based representation of all pairwise > comparisons. Some algorithms have been published > (http://www.accessmylibrary.com/coms2/summary_0286-21655824_ITM), but I > can't find an R implementation.
http://cran.r-project.org/web/packages/multcompView/ ? Hadley -- 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.
