I would like to suggest a few improvements for arbitrary fit functions;
a. Once added to the list, the function cannot be edited in-place. I can select the function, edit it in the “function form” field, add the edited function to the list and delete the old one. But that is fairly cumbersome.
b. I would like to be able to name functions in the arbitrary function list. I have only a few fit functions in the list but things are starting to look messy already:
c. I would like to be able to manually re-order the function list so that I can group related functions together.
d. I don’t quite know where the functions are stored (~/library/Application Support/DataGraph doesn’t seem to contain them) – it would be great if they can be exported/imported/copied to other instances of DataGraph.