Question about PCA
The Statistitxl PCA analysis gives me the '% of Var' at the top of the results page. However, I believe this is the % of Var for PCs of the column X column covariance matrix, while the casewise score PCs are from a row X row covariance matrix. So I believe the '% of Var' does not apply to the 1st 3 casewise scores PCs, and I should transpose the data and re-run the PCA to get the corrext % of Var calculation. However, I'm not sure. Any insight? Sorry if this is confusing - please ask me to clarify if necessary.