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Re: st: corr_svy & covariance matrix for survey data


From   Nick Winter <[email protected]>
To   [email protected]
Subject   Re: st: corr_svy & covariance matrix for survey data
Date   Fri, 03 Oct 2008 14:32:02 -0400

Ah, indeed. In this regard -corr_svy- acts like Stata's -correlate-, as of when -corr_svy- was written.

Note that if you want the matrix of correlation coefficients only--and don't care about the p-levels--you can simply use -correlate- with aweights, which is how -corr_svy- gets the point estimates.

-NW

Steven Samuels wrote:

Not wrong answers, Nick. I mean that -corr_svy- does not provide the the correlation matrix in the ereturn list. My phraseology was incorrect. I apologize.

-Steve
On Oct 3, 2008, at 9:34 AM, Nick Winter wrote:


Can you give an example or -corr_svy- giving wrong answers?

Steven Samuels wrote:

In Stata V 10 Version 10.1 corr_svy does not return the proper correlation matrix, at least for p>2 dimensions.
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Nicholas Winter                                 434.924.6994 t
Assistant Professor                             434.924.3359 f
Department of Politics                  [email protected] e
University of Virginia          faculty.virginia.edu/nwinter w
PO Box 400787, 100 Cabell Hall
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