| % File src/library/stats/man/pairwise.wilcox.test.Rd |
| % Part of the R package, https://www.R-project.org |
| % Copyright 1995-2007 R Core Team |
| % Distributed under GPL 2 or later |
| |
| \name{pairwise.wilcox.test} |
| \alias{pairwise.wilcox.test} |
| \title{Pairwise Wilcoxon Rank Sum Tests} |
| \description{ |
| Calculate pairwise comparisons between group levels with corrections |
| for multiple testing. |
| } |
| \usage{ |
| pairwise.wilcox.test(x, g, p.adjust.method = p.adjust.methods, |
| paired = FALSE, \dots) |
| } |
| \arguments{ |
| \item{x}{ response vector. } |
| \item{g}{ grouping vector or factor. } |
| \item{p.adjust.method}{ method for adjusting p values (see |
| \code{\link{p.adjust}}). Can be abbreviated.} |
| \item{paired}{a logical indicating whether you want a paired test.} |
| \item{\dots}{additional arguments to pass to \code{\link{wilcox.test}}.} |
| } |
| \details{ |
| Extra arguments that are passed on to \code{wilcox.test} may or may |
| not be sensible in this context. In particular, |
| only the lower triangle of the matrix of possible comparisons is being |
| calculated, so setting \code{alternative} to anything other than |
| \code{"two.sided"} requires that the levels of \code{g} are ordered |
| sensibly. |
| } |
| \value{ |
| Object of class \code{"pairwise.htest"} |
| } |
| \seealso{ \code{\link{wilcox.test}}, \code{\link{p.adjust}}} |
| |
| \examples{ |
| attach(airquality) |
| Month <- factor(Month, labels = month.abb[5:9]) |
| ## These give warnings because of ties : |
| pairwise.wilcox.test(Ozone, Month) |
| pairwise.wilcox.test(Ozone, Month, p.adj = "bonf") |
| detach() |
| } |
| \keyword{htest} |