I want to run the following code. My problem is that I dont know how to put the delimiter in the scan function so that it identifies the three variables inside vars. I've tried multiple times without success (I just put "?" inside the code because that is were my question lies). I hope you can help me. Thanks in advance.   %let vars="TIIE 28 días (%)"n "TIIE 91 días (%)"n "Cetes 28 días (%)"n;   %macro serie;           %do i=1 %to 3;                     %let parameter=%scan(&vars.,&i.,"?");             proc sgplot data=base;           series x=date y=&parameter./ markers;           run;        %end;   %mend;   ... View more