Improve np.nan error handling in estimating function

[pzivich]

Is your feature request related to a problem? Please describe.

I'm always frustrated when I have a np.nan occur but I don't know which row it is happening in.

Describe the solution you'd like

Have the error identify which rows are the problematic ones. This will speed up de-bugging the estimating functions.

Describe alternatives you've considered

Manually running the estimating function and checking. Very annoying

Additional context

None