Add IV curve plot

[ilkilic]

Adds IV curve plot function as well as helper functions calculate_max_thresh_current and calculate_rheobase to tools.py for calculating upper bound threshold current and rheobase, respectively.

[ilkilic]

By the way, would you prefer to actually have one function that computes and plot the IV curve instead of calling two functions?

[AurelienJaquier]

looks great!

[darshanmandge]

Yes. If you are making one, a single function for IV (and FI curve if you are making one) would be good.

[ilkilic]

By the way, would you prefer to actually have one function that computes and plot the IV curve instead of calling two functions?

I refactored it, let me know if it is fine with you

[darshanmandge]

Cool. I don't know if you want to add efel as dependency or keep it optional.

[AurelienJaquier]

Could you still have two functions? One for running IV responses and one for plotting? We can keep the function doing both, and it could just call the two functions. The more we can subdivide functions, the better. By the way, could you also make the 'compute rmp, compute rin and compute threshold current' one function in tools? That would be useful, since I will also be using that in my notebook

[ilkilic]

@darshanmandge I think it would be best not to have efel as a dependency

[AurelienJaquier]

Brilliant, thanks a lot!