search for: quartimax

Hi All, I'd like to build a package for the community that replicates the output produced by SAS "proc varclus". According to the SAS documentation, the first few steps are: 1. Find the first two principal components. 2. Perform an orthoblique rotation (quartimax rotation) on eigenvectors. 3. Assign each variable to the rotated component with which it has the higher squared correlation. The cartoon example below attempt to do this, but I found my results differ from SAS in "pc3" (i.e, the standardize component scores). I'd appreciate your...

...rthogonal target rotation targetQ oblique target rotation pstT orthogonal partially specified target rotation pstQ oblique partially specified target rotation oblimax oblique entropy orthogonal minimum entropy quartimax orthogonal varimax orthogonal simplimax oblique bentlerT orthogonal Bentler's invariant pattern simplicity criterion bentlerQ oblique Bentler's invariant pattern simplicity criterion tandemI orthogonal Tande...

Thanks to Mr.Liviu Androvic and Mr.Richard Rowe helped me in PCA. Because I have just learn R language in a few day so I have many problem. 1) I don't know why PCA rotation function not run although I try many times. Would you please hepl me and explain how to read the PCA map (both of rotated and unrotated) in a concrete example. 2) Where I can find document relate: Plan S(A), S(A*B),

...rthogonal target rotation targetQ oblique target rotation pstT orthogonal partially specified target rotation pstQ oblique partially specified target rotation oblimax oblique entropy orthogonal minimum entropy quartimax orthogonal varimax orthogonal simplimax oblique bentlerT orthogonal Bentler's invariant pattern simplicity criterion bentlerQ oblique Bentler's invariant pattern simplicity criterion tandemI orthogonal Tande...