This is another useful not-a-trick.
No longer to be found in the documentation is the "do over" syntax, which can simplify code and keep datasets narrower. The syntax works like this:
data ...;array arrayname x y z var1 - var3;
do over arrayname;
if arrayname lt 0 then arrayname eq 0;
end;
run;
In the example above, all the variables listed after "arrayname" are recoded so that the smallest value is 0. Note that the array is not explicitly indexed, even with the [*] format.
