How to create function handle from fit struct after using curve fitting toolbox?

I have this struct as result of my curve fitting toolbox, now I need to create a function handle based on my spline coefficients. Can any one help?

Answer 1

[Stephan]

Hi,

Why do you need this? You can directly compute new values for your fitresult:

y_new = fitresult(x_new)

This returns the vector corresponding to x_new, which should exactly be the result you expect from a function handle.

Best regards

Stephan

[Stephan]

Iam not in the near of my computer to test it, but i think this should work:

f  = @(x)fitresult(x)

ga should accept this function handle i think.

You can test:

y_expected = f(x_known)

If this returns the correct value for y you are fine.

Best regards

Stephan

Answer 2

[S.M.]

I need to give it to Genetic Algorithm (ga) from Global Optimization toolbox, to find my global minimum. The ga needs function handle.

Answer 3

[S.M.]

Or I have to write equation for it, which with spline fitting and 336 coefficients, is impossible.

Answer 4

[S.M.]

I am almost done for today but I will try and see, thanks.