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RE: st: RE: Changing -correlate- results


From   "louis boakye-yiadom" <louisby@hotmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   RE: st: RE: Changing -correlate- results
Date   Mon, 21 Mar 2005 15:06:20 +0000

I share your view, Nick. Thank you all.

Louis



From: "Nick Cox" <n.j.cox@durham.ac.uk>

Well, yes it is. Here, and almost always
elsewhere, there is presumably no substantive
difference, but I'd argue that equal values
should get equal ranks.

Nick
n.j.cox@durham.ac.uk

louis boakye-yiadom

> I've tried both the -egen- and -sort, stable- approaches;
> each gives me
> identical results after each execution of the do file. With
> -egen- the
> correlation coefficient is always 0.7498, and with -sort,
> stable-, the
> result is always 0.7608. I suppose the difference in the two
> results lies in how tied ranks are treated.

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