SAS Tips and Tricks

• Coutor Plot and 3D Surface Plot:

  data demo;
    do x = 60 to 100 by 5;
      do y = 0 to 30 by 5;
         z = 0.5 * x + 0.8 * y - 2 * x * y + 0.4 * x * x;
         output;
      end;
    end;
  run;
  
  proc gcontour; plot x * y = z; run;
  proc g3d; plot x * y = z / grid; run; 
  quit;