Matlab > Genetic annotator > HELP 2

Question

Inderjeet Singh 2016-1-21

关闭： MATLAB Answer Bot 2021-8-20

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?

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Answer 1

Eric 2016-1-21

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