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st: RE: Difference in correlation coefficients

From   "Nick Winter" <[email protected]>
To   <[email protected]>
Subject   st: RE: Difference in correlation coefficients
Date   Wed, 17 Jul 2002 08:30:44 -0400

> -----Original Message-----
> From: Banya, Winston [mailto:[email protected]] 
> Sent: Wednesday, July 17, 2002 4:03 AM
> To: '[email protected]'
> Subject: st: Difference in correlation coefficients
> Dear All,
> I  have used the pwcorr command to get correlation 
> coefficients and I am
> interested in finding the difference in the coefficients and the
> significance of the difference.
> For example if I have 3 variables y1 y2 and x2 and then I do
> pwcorr y1 x2 to get r1 and  pwcorr y1/y2 x2 to get r2. If there is an
> improvement in r as a result of using y1/y2 then how to 
> account for the
> improvement together with its significance.  Is there anyway 
> way I can do so
> using STATA?
> Many thanks

Typeing -findit correlation test- turns up, among much else, -cortesti-,
-corcor- (which is part of STB-32), one or both of which should give you
what you want.

Nick Winter
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