in every iteration of ga i wanna get the values generated by vector x(1), x(2) to get the optimized value?

Program

clc

clear all

x(1)=randi([6,100]);

x(2)=randi([2,4]);

fun=@(x) x(1)+x(2)+100;

[x, fval]=ga(fun,2)

Output

Optimization terminated: maximum number of generations exceeded.

 x =
  -23.2216  -17.4776

 fval =
   59.3009

here i am getting negative values.. please help how to code this..thank you

[Geoff Hayes]

Arunachalam - what is the purpose of the code

 x(1)=randi([6,100]);
 x(2)=randi([2,4]);

Do you think that it is necessary for the fitness function that you are trying to minimize, fun? You mention how you are getting negative values for your x. This makes sense since the Genetic Algorithm is minimizing your fitness function. What do you expect to see instead?

Answer 1

[Alan Weiss]

If you want to constraint your parameters to be positive, include bounds.

Alan Weiss

MATLAB mathematical toolbox documentation