I don't believe it can be done in SAS easily. The CLASS statement in CANDISC takes only a single variable as an argument, and I don't see any way to incorporate the design. The closest I can think of is to look at PROC PLS, and try a model that has the RBD factors on the right hand side of the MODEL statement, and the responses for each of the categories on the left hand side, and try for a prinipal components regression.
Steve Denham
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