how can i work with two variables with genetic algorithm

I've created a file with a two variable function, but when i call it at my genetic algorithm script or at the optimization tool it didn't work.

The error menssage said i didn't have enough arguments, so I've tried to use the meshgrid to creat a matrix but it didn't work too.

Answer 1

[Star Strider]

It would be helpful to know what your fitness function is doing.

If there are independent variables, you can combine them as:

x = [invar1(:)  invar2(:)]

Then refer to them in your objective function as: ‘x(:,1)’ and ‘x(:,2)’.

To fit two (or more) dependent variables, the objective function must produce a matrix output so they are the same dimensions.

For an example of that, see: Is it possible to use Simulated Annealing or Genetic Algorithm for parameter estimation of a parametric System of ODEs?