Producing all possible 3 way, 4 way and 5 way frequencies using PROC FREQ

[Astounding]

Prakash,

Just in case I'm still misinterpeting the problem, here's an approach that uses your original data set as input.  It creates an observation for each 72C3 combination that have all 3 items equal to 1.

data _72C3_ (keep=_72C3_);

   set original;

   array items {72} item_1 - item_72;

   do i = 1 to 70;

      do j = i+1 to 71;

         do k = j + 1 to 72;

             if items{i} = items{j} = items{k} = 1 then do;

                _72C3_ = put(i, z2.) || ' ' || put(j, z2.) || ' ' || put(k, z2.);

                output;

            end;

         end;

      end;

   end;

run;

Then get counts for each value of _72C3_.

Good luck.