netrunner wrote:
Hi,
does anibody know if is possible to have as ouptut from the wilcox.exact
function also a z value to "link" the U value at the normal distribution?
I don't think that wilcox.exact() provides this directly.
I would use wilcox_test() in pkg 'coin'.
If you do want to restrict yourself to exactRankTests::wilcox.exact,
then you could use the call with 'exact=FALSE' and invert the P-value:
pv <- wilcox.exact(y ~ x, exact = FALSE)$p.value
Z <- qnorm(pv/2) # for the default 2-sided test
You will have to provide the appropriate sign for Z.
-Peter Ehlers
thank you!
netrunner
--
Peter Ehlers
University of Calgary
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