IS there any way of optimising the coefficients of transfer function using genetic algorithm

using routh array and pade approximation i have a reduced order transfer function model for heavy duty gas turbine plants, that coefficients parameter should be optimised using genetic algorithm.. how to draw fitness function for this problem.

Answer 1

[Walter Roberson]

It can be done if you can come up with a way of mechanically determining whether one set of coefficients is "better" than another set of coefficients.

If you did have a proposed set of coefficients for the transfer function, how would you evaluate whether it was a good set of coefficients or not?