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RE: st: RE: Changing -correlate- results


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: Changing -correlate- results
Date   Mon, 21 Mar 2005 14:21:38 -0000

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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