Constrained real poles

[qgoestch]

Hi Phil,
Thank you a lot for your python duplicate! I know it has been a while since you committed this but I was wondering if with your code it was possible to easily constrain the nature of the poles. For instance, I would like to be able to set how much real poles and complex conjugate poles the fitting will return. I've been over the theory of vector fitting and the Matlab code and I think this is possible but some guidance might help me to do it faster.

Thanks in advance for your answer!