search for: cortest

Dear All, I wonder if there is any implemented statistical test in R to test the equality between many correlations. As an example, let X1, X2, X3 X4 be four random variables. let Phi(X1,X2) , Phi(X1,X3) and Phi(X1,X4) be the corresponding correlations. How to test Phi(X1,X2) = Phi(X1,X3) = P(X1,X4)? Many thanks in advance, Bernard

...un 18, 2011 at 5:08 AM, David Cross <d.cross at tcu.edu> wrote: > Yes, Bartlett's is not a good way to "justify" a PCA. > > David Cross > d.cross at tcu.edu > www.davidcross.us > > > > > On Jun 18, 2011, at 1:47 AM, Jeremy Miles wrote: > >> cortest.bartlett() in the psych package. >> >> I've never seen a non-significant Bartlett's test. >> >> Jeremy >> >> >> >> On 17 June 2011 12:43, thibault grava <thibault.grava at gmail.com> wrote: >>> Hello Dear R user, >>> &g...

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 [[alternative HTML version deleted]]