On Fri, 25 Aug 2006, Stefan Grosse wrote: > Dear List, >
Stefan, > after updating the exactRanksumTests package I receive a warning that > the package is not developed any further and that one should consider > the coin package. > > I don't find the signed rank test in the coin package, only the Wilcoxon > Mann Whitney U-Test. I only found a signed rank test in the stats > package (wilcox.test) which is able to calculate the exact pvalues but > unfortunately the procedure cannot calculate the exact values with ties. > indeed, this is the only gap to be filled in `coin', I just haven't had the time to implement this. And of course, `exactRankTests' is still available and will be available in the future. So you _can_ use it! The message just means that I'm not going to add _new_ features to `exactRankTests' and that we as the authors of both packages believe that the `coin'-way of doing things is more appropriate. Hope that helps & sorry for the confusion! Torsten ps: please cc emails about packages to the maintainer. > Is there any other package that is providing a similiar test? Or is > there an easy work out how to take the ties into account? (Or a chance > that the correction is taken into account for the stats package?) > > Stefan Grosse > > Take the following example from Bortz/Lienert/Boehnke: > >> x1<-c(9,14,8,11,14,10,8,14,12,14,13,9,15,12,9) >> x2<-c(13,15,9,12,16,10,8,13,12,16,9,10,16,12,9) > > # exactRankTests package: > >> wilcox.exact(x1,x2,paired=TRUE) > > Exact Wilcoxon signed rank test > > data: x1 and x2 > V = 13, p-value = 0.1367 > alternative hypothesis: true mu is not equal to 0 > > # wilcox.test by stats package: > >> wilcox.test(x1,x2,paired=TRUE,exact=TRUE) > > Wilcoxon signed rank test with continuity correction > > data: x1 and x2 > V = 13, p-value = 0.1436 > alternative hypothesis: true mu is not equal to 0 > > Warning messages: > 1: cannot compute exact p-value with ties in: wilcox.test.default(x1, > x2, paired = TRUE, exact = TRUE) > 2: cannot compute exact p-value with zeroes in: wilcox.test.default(x1, > x2, paired = TRUE, exact = TRUE) > > ______________________________________________ > [email protected] 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. > > ______________________________________________ [email protected] 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.
