For the BH, you can use the command ?p.adjust(..., "BH") For reading the files in and doing the analysis, here is an example: http://www.r-tutor.com/elementary-statistics/non-parametric-methods/wilcoxon-signed-rank-test
You'd then need to extract all the P values like this: x <- wilcox.test(... ) i <- 1 # the place to put the relevant P P.vector[i] <- x$p.value There are many ways to perform this, it depends on how your data is structured (which wasn't fully clear to me from your e-mail)... ----------------Contact Details:------------------------------------------------------- Contact me: tal.gal...@gmail.com | 972-52-7275845 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) | www.r-statistics.com (English) ---------------------------------------------------------------------------------------------- On Wed, Nov 24, 2010 at 3:13 AM, selthy <sel...@hotmail.com> wrote: > > Hi there, > I'm a total newbie to R. I'd like to use a Wilcoxon Rank Sum test to > compare > two populations of values. Further, I'd like to do this simultaneously for > 114 sets of values. The two populations are C and N. The different sets of > values have arbitrary names (I'll call them a, b, c etc). The set-up is as > follows: > a b c d .... > C 2 > C 3 > C 5 > C 9 > C 4 > C 5 > . > N 13 > N 16 > N 18 > . > > Can someone please show me how to read the data in, do the test on each set > (a, b, etc) and then do, for example, a Benjamani and Hochberg correction > for multiple tests? > > That would be great! > Cheers > > -- > View this message in context: > http://r.789695.n4.nabble.com/Wilcoxon-Rank-Sum-in-R-with-a-multiple-testing-correction-tp3056557p3056557.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. > [[alternative HTML version deleted]] ______________________________________________ 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.
