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Re: st: Re: Post-Hoc test for Kruskal Wallis


From   Ricardo Ovaldia <ovaldia@yahoo.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: Post-Hoc test for Kruskal Wallis
Date   Tue, 16 Mar 2010 18:36:11 -0700 (PDT)

Thank you Joseph. I am in the process of programing and testing Sokal and Rohlf which also uses the Q statistic. I am using John Gleason's -qsturng- command for the distribution. I would be intereted in seen if  they are both the same method.

Regards,
Ricardo

Ricardo Ovaldia, MS
Statistician 
Oklahoma City, OK


--- On Tue, 3/16/10, Joseph Coveney <jcoveney@bigplanet.com> wrote:

> From: Joseph Coveney <jcoveney@bigplanet.com>
> Subject: st: Re: Post-Hoc test for Kruskal Wallis
> To: statalist@hsphsun2.harvard.edu
> Date: Tuesday, March 16, 2010, 6:52 AM
> Ricardo Ovaldia wrote:
> 
> Is there a Post-Hoc test for Kruskal Wallis in Stata?
> Something like the one proposed by Sokal and Rohlf (1995).
> 
> --------------------------------------------------------------------------------
> 
> I'm not sure whether it's the same test that you're
> referring to, but last
> summer I had an occasion to program the Dwass, Steel,
> Critchlow-Fligner test.  I
> used M. Hollander & D. A. Wolfe, _Nonparametric
> Statistical Methods_ Second
> Edition. (New York: John Wiley & Sons, 1999) pp.
> 240--44 as the source for the
> formula and for the worked example to verify the ado file's
> output.
> 
> It's not difficult to program, but I'll put it up on SSC
> once I write a help
> file.  You'll need to install John Gleason's -qsturng-
> from SSC in order to get
> the reference distribution for the test statistic
> (Studentized range) if you
> want to avoid manual look-up.
> 
> Joseph Coveney
> 
> 
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