This is the source code for a model-fitting application, developed as part of my Master's thesis in computing. It ran on classic Macintosh; I think I started work with System 6 and ended with System 7.
Unfortunately, I don't have a binary version around; I probably still have floppies in the basement, but I don't have a computer capable of reading them. One day I should rebuild it; it requires the Macintosh Programmer's Workshop and MacApp. And an emulator for the classic Mac, of course.
I updated the text files to be LF-terminated for easier viewing. They are still encoded in Mac OS Roman
I include the original archive in MacBinary format -- it can be opened by Unstuffit on mac emulators.