From ligges@statistik.uni-dortmund.de  Mon Dec 18 18:01:40 2000
From: ligges@statistik.uni-dortmund.de (Uwe Ligges)
Date: Mon, 18 Dec 2000 19:01:40 +0100
Subject: [Rd] Help: StatXact
References: <Pine.LNX.4.21.0012181836580.22869-100000@artemis.imbe.med.uni-erlangen.de>
Message-ID: <3A3E5104.F34880B0@statistik.uni-dortmund.de>



Torsten Hothorn wrote:
> 
> Help needed!
> 
> Has anyone access to StatXact? I just hacked exact two-sided p-values for
> rank tests (for package exactDistr, which will move to CRAN/contrib as
> exactRankTests soon ;-) and would like to compare the results of my
> implementation to that of StatXact. Could someone please calculate the
> exact one-sided (both greater and less) and two-sided p-values?
> 
> # Data from the StatXact-4 manual, page 221
> treat <- c(94, 108, 110, 90)
> contr <- c(80, 94, 85, 90, 90, 90, 108, 94, 78, 105, 88)
> 
> My results:
> 
> > wilcox.exact(x,y)
> 
>          Wilcoxon rank sum test
> 
> data:  x and y
> W = 52, p-value = 0.8963
> alternative hypothesis: true mu is not equal to 0
> 
> > wilcox.exact(x,y, alternative="l")
> 
>          Wilcoxon rank sum test
> 
> data:  x and y
> W = 52, p-value = 0.5656
> alternative hypothesis: true mu is less than 0
> 
> > wilcox.exact(x,y, alternative="g")
> 
>          Wilcoxon rank sum test
> 
> data:  x and y
> W = 52, p-value = 0.4636
> alternative hypothesis: true mu is greater than 0
> 
> Thanks!
> 
> Torsten


Hi Torsten!

I could do it tomorrow, when I am back in office (Stat-Xact 3 ???), if
you like ...

Uwe
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[Rd] Help: StatXact
Uwe Ligges