Principal component analysis with clusters

Posted by Luca Meyer on Sep 17, 2006; 10:12am
URL: http://spssx-discussion.165.s1.nabble.com/Principal-component-analysis-with-clusters-tp1070978.html

We have a dataset with some 20 numerical variables and would like to derive
PC for it. The dataset is composed of 1000 cases divided into 5 groups of
200 cases each. We would like to study the different loadings for each group
on the common factors. In other words, we were thinking to (1) derive a
common factor structure using the 1000 cases, (2) somehow study the
difference between groups according to such loadings.

How would you proceed? We were thinking of FACTOR but then are not sure how
to relate groups to the common factors...

Thank you,

Mr. Luca MEYER
www.lucameyer.com

PS: We licence only SPSS Base, do we need more advanced packages?