Hi. I want to compare between two quadratic regressions to see if they describe the same population or two different population. While it seems easy enough to find ways of comparing linear or multiple regressions, I can't seem to find a statistical method of comparing between two polynomial regressions. I would highly appreciate any guidance in this manner. Thanks! Oded Berger-Tal Mitrani Department of Desert Ecology Ben-Gurion University, Sede-boquer Campus, Israel
