MATLAB: GA ToolBox – Length of Chromosome

gagenetic algorithmGlobal Optimization ToolboxOptimization Toolbox

How would i be able to enter my own calculated value as the Length of a Chromosome in the Optimisation Tool Box, Genetic Algorithm?

Best Answer

Perhaps the documentation on defining fitness functions can help. Or perhaps the documentation on bit string population can help.

Good luck,

Alan Weiss

MATLAB mathematical toolbox documentation

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MATLAB: Specifying constraints for optimization using GA

As documented, when using a custom population type, "ga ignores all constraints, including bounds, linear constraints, and nonlinear constraints." So your custom creation, crossover, and mutation functions must enforce your constraints.

Alan Weiss

MATLAB mathematical toolbox documentation

MATLAB: Ga

Interesting idea. This should be possible, probably with non-linear constraint option.

However, (disclaimer: this is just a thought/curiosity, no guarantees at all), what if you just sort x at the beginning of my_fun()? This would enforce the constraint in your fitness function and possibly cause convergence of the guesses. Let me know if/how it works for you.

function z=my_fun(x)
x = sort(x);
a=2;
b=3;
c=1;
z=a*x(1)-b*x(2)+c*x(3);

Best Answer

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MATLAB: Specifying constraints for optimization using GA

MATLAB: Ga

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