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In the 70's we did this by 7 way crosstabs and used a series of if mem1 eq 1 and mem2 eq 4 and mem3 eq 7 and mem4 eq 3 . . . newmem=1. statements. (presented this at the 78 or 79 meeting). Today I would explore the use of SPSS's CATPCA - categorical principal components analysis, correspondence analysis, and TWO-STEP. TWOSTEP will use categorical and/or continuous and produce nonhierarchical clusters. It tells you the AIC and BIC for different numbers of clusters.