Check out -vanelteren- (-findit vanelteren-).
Joseph Coveney
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Constantine
Daskalakis
Sent: Friday, April 10, 2009 00:45
To: [email protected]; Constantine Daskalakis
Subject: Re: st: adjusted Mann-Whitney/Wilcoxon test
I have the same question as Ricardo.
By stratified, we mean controlling for another covariate:
Wilcoxon of Y by X, controlling for Z
StatXact does this stratified Wilcoxon.
David, the parallel is Mantel-Haenszel for dichotomous outcome.
So, the command would look something like this:
ranksum y x, by(z)
or
ranksum y, by(x) strata(z)
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