Hi Gail,
If I understand correctly, you have graphed the response surface to a
model under "Fit Response Curves". To change the range of either of
the axes, go to the menu that says "Axes" and choose "Define Graph
Range". You can change the min, max and interval there.
Peter Nelson
PhD candidate
Department of Botany and Plant Pathology
Cordley Hall 2082
Oregon State University
Corvallis, Oregon 97331-2902
Phone:
541-737-1742