Passing parameters into .m function while trying to use fminsearch

I have a "complex" function that is saved in a .m file that is then optimized with the fminsearch. The function requires some additional values that the only way I seem to be able to reference is to create global variables( which I prefer not to). I had tried to pass a struct in but it didn't seem to work. How can I pass parameters for a function being called on my fminsearch?

Here is the sample code Xstart = [286 340 5]; [finalValues,f,exitFlag] = fminsearch(@FcnGauss,Xstart);

%%

function f = FcnGauss(V)

global X1D Z1DROI

f = 0; X = X1D; Z = Z1DROI; h = V(1); mu = V(2); s = V(3);

idx = find(Z>0); for i = 1:length(idx) x = X(idx(i)); xbar = (x - mu)/s; del = Z(idx(i)) - h*exp(-xbar^2); f = f + del^2; end

end

Answer 1

[Alan Weiss]

You can pass extra parameters using nested functions or anonymous functions.

Alan Weiss

MATLAB mathematical toolbox documentation

Answer 2

[Andreia Smith-Moritz]

Perfect! Thank you.I ended up using a nested function.