How to force the GA optimization for certain varibale values ??

Hello every one, I am using GAtool to optimize a function. I wrote the function in matlab m-file

suppose that I have this function y(x)= 2x^2+sinx,

I want to use the gatool to solve for optimum value of x easly.

my question is that. what if I want the value of x used in optimization goes in certain range

like x= [ 0.2 0.4 0.6 ..........100] ,

how to tell the gatool box that x do optimization but for these x values only

so it is not allowed to get answer x=0.22 for example

many thanks

Answer 1

[Alan Weiss]

Turn your problem into one of Mixed Integer Optimization. There is an example here that shows how to convert from integer to general discrete constraints, but your case seems simple (x to x/5 for x between 0 and 500)).

Alan Weiss

MATLAB mathematical toolbox documentation