%let varlist1 =a b c d e f; %let varlist2 = c d e; How to use macro or function to test if var in varlist2 are in varlist1? Say, I can use %scan() function and do loop to test, but I don't know if there is a macor counterpart of 'in' of sas base? e.g, "%scan(&varlist2,1)" in &varlist1, but in SAS base, &varlist1 should be quoted for each element of &varlist2, how can I make it quoted so that I can use SAS base in operator? Or alternatively is there other way to achieve this without sas base 'in' operator?
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