pairwise.wilcox.test {stats}  R Documentation 
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, ...)
Arguments
x 
response vector. 
g 
grouping vector or factor. 
p.adjust.method 
method for adjusting p values (see

paired 
a logical indicating whether you want a paired test. 
... 
additional arguments to pass to 
Details
Extra arguments that are passed on to 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 alternative
to anything other than
"two.sided"
requires that the levels of g
are ordered
sensibly.
Value
Object of class "pairwise.htest"
See Also
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.adjust.method = "bonf")
detach()
[Package stats version 4.4.1 Index]