* ProcMeansSummary Example

  Print summary statistics using proc means
  and proc summary;

options ls=64 nodate pageno=1;
data drugstore;
   infile 'c:/datasets/drugstore1.txt' firstobs=2;
   length chain $ 9;
   input @10 product $15. chain $ store_id price;

proc print;
   title 'Drugstore Dataset';

proc means n mean std;
   title 'proc means 1st printed output';
   class chain product;
   var price;
   output out=drugstore_out mean=mean;

proc sort data=drugstore;
   by chain product;

proc means data=drugstore n mean std;
   title 'proc means 2nd printed output';
   by chain product;
   var price;

proc print data=drugstore_out;
   title 'proc means dataset output';

proc summary data=drugstore mean print;
   title 'proc summary printed output';
   class chain product;
   var price;
   output out=drugstore_summary mean=mean;

proc print data=drugstore_summary;
   title 'proc summary output dataset';

run;
quit;