I want to count the number of unique items in a variable (call it "categories") then use that count to set the number of iterations in a SAS macro (i.e., I'd rather not hard code the number of iterations).
I can get a count like this:
proc sql;
select count(*)
from (select DISTINCT categories from myData);
quit;
I can run a macro like this:
%macro superFreq;
%do i=1 %to &iterationVariable;
Proc freq data=myData;
table var&i / out=var&i||freq;
run;
%mend superFreq;
%superFreq
I want to know how to get the count into the iteration variable so that the macro iterates as many times as there are unique values in the variable "categories".
Sorry if this is confusing. Happy to clarify if need be. Thanks in advance.