Yes I had a data.frame but did not named the categorical variable "class" and the numerical one "var". It is working now. However I would like to do a comparison with several classes and variables. Is there a way of doing this? Or do I have to do a Wilcox.test for every variable? Thanks
Marie. -- View this message in context: http://r.789695.n4.nabble.com/NPMC-tp2254913p2255813.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.
