Here is my data:
year Quarter s1 s2 .......s25
1952 1
1952 1
1952 1
1952 2
1952 2
1952 2
I want to find the product of each s(i). I wrote a clumsy code, but I'm sure a do loop can make it more efficient.
see the attached code.
hi ... maybe ...
data s25_new;
array s(25);
array ss(25);
do until (last.q);
set s25;
by year q;
if first.q then do j=1 to 25; ss(j)=1; end;
do j=1 to 25; ss(j)=ss(j)*s(j); end;
end;
keep year q ss1-ss15;
run;
hi ... maybe ...
data s25_new;
array s(25);
array ss(25);
do until (last.q);
set s25;
by year q;
if first.q then do j=1 to 25; ss(j)=1; end;
do j=1 to 25; ss(j)=ss(j)*s(j); end;
end;
keep year q ss1-ss15;
run;
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