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Re: st: svy-command for factor analysis and graphics


From   "Stas Kolenikov" <skolenik@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: svy-command for factor analysis and graphics
Date   Sat, 24 Mar 2007 14:31:57 -0500

You can use [aweights] with some of the graphics commands, e.g. with
-scatter- to make marker sizes proportional to those weight variables.
As for factor analysis, you might want to compute the estimate of the
covariance matrix (through say svy: mean- command) and feed it into
-factormat-. I would find it cheesy, but most of the exploratory
factor analysis is cheesy. I have a very basic confirmatory factor
analysis package -cfa1- that can be made supportive of -svy- settings
by specifying -svy- program option.

On 3/24/07, Eva Gottschalk <eva.gottschalk@uni-konstanz.de> wrote:
Hi,

since my data is survey date and comes with probability weights I use -
svyset - but as far as I know there's no svy-command for factor
analysis? So how can I apply the survey settings (the pweight) to the
estimation of the factor analysis?

I am trying to compute various descriptive statistics. For cross-table
I
can use the svytab-command. Is there any way to compute dweighted
graphics?

Really appreciate your help
Eva
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--
Stas Kolenikov
http://stas.kolenikov.name
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