One thing that is not clear is where various existing and future fitting functions should go. In general I think the best place for them would be as close as possible to the models they serve, both in the code (except if they are really long) and in the API reference. There could be a section listing just fitting functions as there is now, but I would see that as secondary.

Originally posted by @adriesse in #1598 (comment)

Let's take up @adriesse's point about where functions should live and be listed in a separate issue (Anton, can you open one?).

Originally posted by @kanderso-nrel in #1598 (comment)