Well using SAS user-defined formats as described in this post is not going to work as they can't be applied to measures. I'm wondering if the VA 7.4 text object may help here. We haven't upgraded to 7.4 yet so I can't try it out. ... View more

Hi David,   My wanted model is:   Y= continuous1 continuous2 continuous3 continuous4 continuous5 Categorical1 categorical2 categorical3 continuous1*Categorical1 continuous2*categorical1 continuous3*categorical1 continuous4 *categorical1 continuous5*categorical1 continuous1*continuous2   I expect there will be breaks in continuous1 and continuous2. There will be linear dependencies in the remaining 3 continuous variables.   How do you reckon? Thanks, Mai ... View more

Yeap. I'm testing with one code only for now, using the where code=. It works. But i still have to work out with the remaining 5000 codes ... View more

I do not know how do that.  People have written macros that generate models like that. You can try an internet search for terms like sas macro regression model pairwise  interactions ... View more