Fitting transfer function model to FRF data

[ymohammadi]

I'm new to python and trying to find a way to fit a transfer function to FRF data. Something similar to sys = tfest(data,np,nz) in matlab where the inputs are the FRF data, number of poles (np) and zeros (nz). The output contains the numerator and denominator coefficients of the transfer function.

I checked the control library but couldn't find such a function.

Thanks for your help.

Larz60+ write Feb-10-2022, 10:06 AM:
Please do not post more that one thread on same subject.
This is a violation of forum rule: https://python-forum.io/misc.php?action=help&hid=22