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st: RE: Partial R-squares


From   "Yulia Marchenko" <ymarchenko@stata.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Partial R-squares
Date   Tue, 14 Sep 2004 11:32:06 -0500

Jillian wrote:

>In doing regression analysis, is it possible for the output to show the
partial R-squares to determine how much
>each variable contributes to the explained variance?

You can use -pcorr2- command to get a table of coefficients of partial
determination:

 . net describe pcorr2, from(http://fmwww.bc.edu/RePEc/bocode/p)

 Example:

 . sysuse auto, clear
 . pcorr2 mpg weight length

--------------------------------------------------------------------------
. sysuse auto, clear
(1978 Automobile Data)

. pcorr2 mpg weight length

(obs=74)

Partial and Semipartial correlations of mpg with

    Variable |     Partial      SemiP    Partial^2     SemiP^2       Sig.
-------------+------------------------------------------------------------
      weight |     -0.2769     -0.1677      0.0767      0.0281       0.018
      length |     -0.1682     -0.0993      0.0283      0.0099       0.155

--Yulia
ymarchenko@stata.com






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