/* test data */
data one;
do i = 1 to 4;
do j = 1 to 4;
do k = 1 to 4;
output;
end;
end;
end;
run;
/* flag if all ijk values are different */
data two;
set one;
array var(*) i j k;
unique = 1;
drop p q;
do p = 1 to dim(var)-1 while(unique);
do q = p + 1 to dim(var) while(unique);
unique = var(p)^=var(q);
end;
end;
run;
/* check */
proc print data=two(obs=10);
run;
/* on lst
Obs i j k unique
1 1 1 1 0
2 1 1 2 0
3 1 1 3 0
4 1 1 4 0
5 1 2 1 0
6 1 2 2 0
7 1 2 3 1
8 1 2 4 1
9 1 3 1 0
10 1 3 2 1
*/
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