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Matlab > Genetic annotator > HELP 2

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Inderjeet Singh
Inderjeet Singh on 21 Jan 2016
Closed: MATLAB Answer Bot on 20 Aug 2021
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?

Answers (1)

Eric on 21 Jan 2016
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);

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