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Re: st: Re: CATPCA vs POLYCHORICPCA


From   Stas Kolenikov <skolenik@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: CATPCA vs POLYCHORICPCA
Date   Sun, 15 Jan 2012 11:44:03 -0500

If you explain what SPSS' CATPCA does, I should be able to tell if
-polychoricpca- does something similar. There's a variety of
understandings of what categorical PCA should be. Polychoric PCA is
one option; we discussed some others in
http://dx.doi.org/10.1111/j.1475-4991.2008.00309.x; there are yet
other methods discussed in Gifi's book.

On Sun, Jan 15, 2012 at 4:14 AM, 汪哲仁 <chejen.wang@gmail.com> wrote:
> Dear all Statalist users,
>
> Does anyone know the difference between SPSS's CATPCA and Stas
> Kolenikov's POLYCHORICPCA.ado?
>
> Thanks in advance.
>
> with kind regards,
>
> Charles Wang
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-- 
Stas Kolenikov, also found at http://stas.kolenikov.name
Small print: I use this email account for mailing lists only.

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