How to pass variables to the fintness function in Genetic algorithm?

hello I am testing a Genetic algorithm without using the global optimization toolbox, I have defined the fitness function in a separtae matlab file and it is called by the main program with ga function ,in my fitness function i need some parametrs from the main function .Can someone tell me hwo to do this ?? I thought about declaring the variables as global variables but it doesn t work ?

Answer 1

[Alan Weiss]

Take a look at the documentation on including extra parameters.

Alan Weiss

MATLAB mathematical toolbox documentation

[Mariem Harmassi]

Hello Alan thank u for the answer , i saw the documentation but it seems not possible to call the ga with f = @(x)parameterfun(x,a,b,c) i must call the fminunc function [x,fval] = fminunc(f,x0) :-/ :-(

Answer 2

[Alan Weiss]

I'm sorry, I do not understand you. It is indeed possible to call the fitnes function with f = @(x)parameterfun(x,a,b,c). If you want more help, you will need to provide more information. Specifically:

1. Your function signature (function f = parameterfun(x,a,b))

2. Your calling syntax (x = ga(f,n,A,b))

3. All output MATLAB gives. I mean all, not an edited version.

Alan Weiss

MATLAB mathematical toolbox documentation

[Mariem Harmassi]

thank u a lot Alan i tested it and it works so i am very happy :)))

Answer 3

[Alex Omar Topa Gavilema]

I have the same problem. how did you do it?

Answer 4

[M Mirrashid]

https://ch.mathworks.com/matlabcentral/fileexchange/112600-transit-search-optimization-algorithm-matlab-codes