ParameterDict has an identity crisis

[Jhsmit]

Is it a bird? Is it a list? Is it a dict? Is it superman?
It seems to be a list/dict hybrid, which might be intentional.

for key in result.params:
    result.params[key]

In any case, this does not work. What is the recommended method for getting unknown parameter values and their names out of this monster?

[Jhsmit]

PS. of course I did read the documentation and docstrings.

for par in result.params:
    name = par.name
    value = par.value

This gives me incorrect values for value, perhaps it gives the initial guess?

[tBuLi]

Yeah it made sense at the time. I opened a discussion about it a while ago: #45.

The reason you can't iterate over it directly is because iterating over the ParameterDict means you will iterate over the Parameter objects which are indeed your initial guesses.

To iterate over the fitted value's I would do:

for param in fit_result.params:
    value = fit_result.value(param)

Any suggestions on the future of this are welcome in #45.