Winfield Chen

> Do you have an example for this using statsmodesl `fit`? > > AFAIK we don't support bounds constraints in the models. @josef-pkt I am currently following the tutorial at...

@josef-pkt What do you think of the approach taken in the latest commit, which makes the bounds support check scipy version-aware and adds two version-aware tests? With this approach, I...

> I don't understand how the unit tests work. Why do we get different results by scipy version? I would have thought we get an exception if an unsupported bound...

Ok, thanks, I've dropped the unit test case for the old scipy version. So this PR now only contains the change in bounds plus tests that for now are run...

Adding tests has been in the back of my mind for a while. This is exciting. Yes, I agree with the link that unit tests would involving splitting off the...