Create and sort the Score data set. This data set contains test scores for students who took two tests and a final exam. The SORT procedure sorts the data set by the BY variables Section and Student.

data score;
   input Student Section Test1-Test3;
   stest1=test1;
   stest2=test2;
   stest3=test3;
   datalines;
238900545 1 94 91 87
254701167 1 95 96 97
238806445 2 91 86 94
999002527 2 80 76 78
263924860 1 92 40 85
459700886 2 75 76 80
416724915 2 66 69 72
999001230 1 82 84 80
242760674 1 75 76 70
990001252 2 51 66 91
;
run;

proc sort data=score;
   by Section Student;
run;