Answer Posted / vimal raj

SAS Array's main functionality is

when a same action has to be performed repeatedly for n number of similar variables, it is ideal to use array which will simplify the sas program and gives the efficient performance in running and also the look n feel is better

data readin;
set outdata;
array Q(20) Q1-Q20;
do i= 1 to 20;
if Q(i) = 6 then Q(i)= .;
end;
run;

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