Find a transfer function from plot data

I am looking to see if there is some way to find the transfer function from data i have of a plot.

Answer 1

[Ameer Hamza]

The easiet option is to use the system identification app: https://www.mathworks.com/help/ident/ug/working-with-the-system-identification-tool-gui.html. It requires the system identification toolbox.

The other option is to write ODE for your transfer function and use this optimization-based method: https://www.mathworks.com/help/optim/ug/fit-differential-equation-ode.html