Re: [R] Factor Analysis Output from R and SAS

2009-03-31 Thread William Revelle
At 8:17 AM -0400 3/31/09, John Fox wrote: Dear TY, Considering that you used different methods -- maximum-likelihood factor analysis in R and principal components analysis in SAS -- the results are quite similar (although the three rotated factors/components come out in different orders). I hop

Re: [R] Factor Analysis Output from R and SAS

2009-03-31 Thread Kenn Konstabel
As it was already pointed out by others, you used different methods (principal components in SAS vs. factor analysis in R). When you use the same method (+ varimax rotation) in both programs, there may still be a *small* difference: this comes from (possibly) different stopping criteria. In R, the

Re: [R] Factor Analysis Output from R and SAS

2009-03-31 Thread John Fox
Dear TY, Considering that you used different methods -- maximum-likelihood factor analysis in R and principal components analysis in SAS -- the results are quite similar (although the three rotated factors/components come out in different orders). I hope this helps, John > -Original Message

Re: [R] Factor Analysis Output from R and SAS

2009-03-31 Thread Sigbert Klinke
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, > I ran factor analysis using R and SAS. However, I had different outputs from > R and SAS. > Why they provide different outputs? Especially, the factor loadings are > different. > I did real dataset(n=264), however, I had an extremely different f