I'm trying to run several PCAs in order to reduce the number of variables that I have. Then I'd like to run the principle components from those PCAs in a multiple regression. However, what I'm having trouble with is getting the various prin1 variables from proc princomp into proc reg. Is there a way that I can rename the variables so that they're not all called prin1, or how do I load the prin1 variable from several different datasets in to the proc reg model?

Thanks,
Jim