data grades;
input homework test;
cards;
48 66
72 75
61 70
88 79
75 91
92 93
77 90
58 69
63 68
;
filename file1 'homework-test.eps';
goptions reset=global DEVICE=pslepsfc gsfmode=replace gsfname=file1 hsize=4 vsize=3;
proc gplot;
plot homework*test;
run;
filename file2 'test-homework.eps';
goptions reset=global DEVICE=pslepsfc gsfmode=replace gsfname=file2 hsize=4 vsize=3;
proc gplot2;
plot test*homework;
run;