From: Peter Dalgaard <p.dalgaard_at_biostat.ku.dk>

Date: Wed 21 Dec 2005 - 09:02:31 EST

Date: Wed 21 Dec 2005 - 09:02:31 EST

Bob Green <bgreen@dyson.brisnet.org.au> writes:

> An earlier post had posed the question: "Does anybody know what is relation

*> between 'T' value calculated by 'wilcox_test' function (coin package) and
**> more common 'W' value?"
**>
**> I found the question interesting and ran the commands in R and SPSS. The W
**> reported by R did not seem to correspond to either Mann-Whitney U,
**> Wilcoxon W or the Z which I have more commonly used. Correction for ties
**> may have affected my results.
**>
**> Can anyone else explain what the reported W is and the relation to the
**> reported T?
*

Well, it's open source... You could just go check.

The T would seem to be asymptotically normal

> wilcox_test(pd ~ age, data = water_transfer,distribution="asymp")

Asymptotic Wilcoxon Mann-Whitney Rank Sum Test

> pnorm(-1.2247)*2

[1] 0.2206883

-- O__ ---- Peter Dalgaard ุster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.htmlReceived on Wed Dec 21 09:24:48 2005

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