Hi Petr, On Thu, Oct 3, 2013 at 8:01 AM, PIKAL Petr <petr.pi...@precheza.cz> wrote: >> Well, I guess I'm asking all of the three... :) Not with the intent to >> choose which one fits, but because I was experimenting and making sure >> I really understand how I could use R's implementation of the Wilcoxon >> test. But I'm intrigued that the answer to "are a and b different" is >> not consistent with "is a less than b"... Maybe my understanding of the > > Your understanding of statistical test is not correct. When asking /a is not > equal b/ you are "splitting" probability of alternative hypothesis to both > sides, with asking /a is lower than b/ probability of alternative hypothesis > is only at one side of distribution. It is really not a question of R but a > question of basic statistics. > > If some program gave you same answer to those questions you shall get rid of > it immediately.
I see what you mean. Makes sense! Thank you. Filipe ______________________________________________ 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.
