I have 50 survey variables, named AB1, AB2, AB3,...,AB50. Most of these variables contain a survey response, either answer choice A, B, or C. In some cases, there is no response in which the field has NULL entered in the cell. How do I change all of these NULL responses to a 0 without doing an if/then statement for each individual variable? Thanks for any help!
data want;
set have;
array abvar{*} $ AB1-AB50;
do i = 1 to dim(abvar);
if missing(abvar(i)) then abvar(i) = '0';
end;
drop i;
run;
If you need this only for display purposes then you can also use:
options missing='0';
Only works for numerical variables.
Change @ketpt42's code above to
if abvar(i)='NULL' then abvar(i) = '0';
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