Matlab > Genetic annotator > HELP 2

HELP > Coding and Minimizing a Fitness Function Using the Genetic Algorithm > Minimizing Using Additional Arguments

   function y = parameterized_fitness(x,a,b)

   y = a * (x(1)^2 - x(2)) ^2 + (b - x(1))^2;

   a = 100; b = 1; % define constant values

Please let me know that from where the x1 and x2 are picking values?

Answer 1

[Eric]

x is an input to the function parameterized_fitness(). Its values are defined by the code that calls this function, not within this function itself.

Also, you need not re-define a and b since these are passed in as well. The usage of this function would look to be something like:

x = [-0.5 0.5];%Or some vector, it's impossible to say from the code
a = 100;
b = 1;
y = parameterized_fitness(x, a, b);

-Eric