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Re: st: factor analysis w/ categorical vars. in STATA


From   "Mark Schaffer" <M.E.Schaffer@hw.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: factor analysis w/ categorical vars. in STATA
Date   Mon, 23 Aug 2004 15:43:05 +0100

Luciana,

From:           	<ls845@nyu.edu>
To:             	statalist@hsphsun2.harvard.edu
Date sent:      	Sun, 22 Aug 2004 17:32:34 -0400
Subject:        	st: factor analysis w/ categorical vars. in STATA
Send reply to:  	statalist@hsphsun2.harvard.edu

> Dear Statalist people,
> 
> I used a Principal Components Analyses with STATA to construct a
> wealth index. I know I can't use categorical variables with this
> method, and I am wondering if STATA has a way to handle factor
> analysis with categorical variables?

-findit polychoric-

will tell you about Stas Kolenikov's package.  It will do principal 
components analysis on ordinal variables, which may be what you need.

Hope this helps.

--Mark

> 
> I'd appreciate any help!
> 
> Sincerely,
>  Luciana
> 
> *
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Prof. Mark E. Schaffer
Director
Centre for Economic Reform and Transformation
Department of Economics
School of Management & Languages
Heriot-Watt University, Edinburgh EH14 4AS  UK
44-131-451-3494 direct
44-131-451-3008 fax
44-131-451-3485 CERT administrator
http://www.som.hw.ac.uk/cert

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