HUMPFIT: Least squares fitting of 'no-interaction' model for biomass - species richness data
Update: Use R!
As an alternative to cumbersome GLIM macros for fitting the no-interaction model for humped species richness - biomass pattern, I developed a tiny program for non-linear least squares estimation of the parameters. The program is experimental, and I appreciate reports on its performance (good and bad). The program uses Numerical Recipes in least squares fitting, but I interpret their revised copyright to give me permission to distribute the program. If you want to use some other non-linear least squares software, you can use these functions.