How to read LTspice simulation result and use it in MATLAB and how to change LTspice components by MATLAB?

I am using LTspice for circuit simulation. I need to create a loop between LTspice and MATLAB program. I want to change width of transistors in spice and read the fft of output voltage by MATLAB to find the optimum point. I wonder if you have any instruction for interface between LTspice and MATLAB? How can I read fft of circuit in MATLAB and how can I change width of transistor in LTspice through MATLAB code?

Answer 1

[Sabin]

Simscape Electrical provide a way to import SPICE netlists to Simscape. Often this conversion is automatic. However, because SPICE is a rich language, it is not always possible to perform a full conversion without some manual intervention.

https://www.mathworks.com/help/sps/ug/converting-a-spice-netlist-to-simscape-blocks.html