goptions ps=54 ls=76; * goptions reset=all device=pdf gsfname=output gsfmode=replace; FILENAME website HTTP "http://www.stat.ufl.edu/~winner/data/mangowine.dat"; data one; infile website; input run_id cx1 cx2 cx3 ethanol glycerol acidity const temp ph inocsz; run; ods PDF file="mangowine_sas1.pdf"; ods graphics on; proc rsreg plots=all; model ethanol = temp ph inocsz; run; proc rsreg plots(unpack)=surface(3d at (inocsz=11.88814)); model ethanol = temp ph inocsz; ods select 'temp*ph=Pred'; run; proc rsreg plots(unpack)=surface(3d at (temp=22.09306)); model ethanol = temp ph inocsz; ods select 'ph*inocsz=Pred'; run; proc rsreg plots(unpack)=surface(3d at (ph=3.811642)); model ethanol = temp ph inocsz; ods select 'temp*inocsz=Pred'; run; ods graphics off; ods PDF Close; run; quit;