options nodate nonumber ls=76 ps=55; title 'Kuehl -- Example 11.1 -- Truck Leaf Springs'; data one; input a b c y @@; a1=(a-1860)/20; b1=b-24; c1=c-11; datalines; 1840 23 10 32 1880 23 10 35 1840 25 10 28 1880 25 10 31 1840 23 12 48 1880 23 12 39 1840 25 12 28 1880 25 12 29 ; run; proc print; proc glm; class a b c; model y=a b c a*b a*c b*c a*b*c; run; proc glm; model y=a1|b1|c1 / solution; run; quit;