You could also check this function I implemented awhile back:

http://www.fernandohrosa.com.br/en/P/sphericity-test-for-covariance-matrices-in-r-sphericity-test/

On Fri, Jun 17, 2011 at 4:43 PM, thibault grava <thibault.grava@gmail.com>wrote:

> Hello Dear R user,
>
> I want to conduct a Principal components analysis and I need to run two
> tests to check whether I can do it or not. I found how to run the KMO
> test, however i cannot find an R fonction for the Bartlett's test of
> sphericity. Does somebody know if it exists?
>
> Thanks for your help!
>
> Thibault
>
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>
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> and provide commented, minimal, self-contained, reproducible code.
>



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