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Re: st: Factor analysis and dummy variables.


From   "Mark Schaffer" <[email protected]>
To   [email protected]
Subject   Re: st: Factor analysis and dummy variables.
Date   Fri, 10 Dec 2004 16:38:57 -0000

findit polychoric

Subject:        	st: Factor analysis and dummy variables.
To:             	[email protected]
From:           	[email protected]
Date sent:      	Fri, 10 Dec 2004 11:24:59 -0500
Send reply to:  	[email protected]

> Hi,
> 
> I know this question has been asked several times, but it's worth asking again.
> 
> Is it right to perform PCA analysis with dummy (0/1) variables?
> 
> I used to code :
> 
> factor radio tv frige bike moto car , pcf factor(5)
> 
> where radio tv ... are dummy (0/1),
> 
> but a colleague just told me I am wrong.
> 
> A MCA in his mind is better.
> 
> What is the best command in that case? Just to make sure.
> 
> Best regards.
> 
> Amadou.
> 
> *
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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
44-131-451-3296 fax
44-131-451-3485 CERT administrator
http://www.sml.hw.ac.uk/cert

*
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*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



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