data equal_slopes; input gender $ salary years; datalines; m 78 3 m 43 1 m 103 5 m 48 2 m 80 4 f 80 5 f 50 3 f 30 2 f 20 1 f 60 4 ; proc reg data=equal_slopes; where gender='m'; model salary=years; title 'Males'; run; quit;