How to apply a random Crossover (Arithmetic/Scattered/Two-point) in Genetic Algorithm using auto-generated file from Optimization Toolbox ?
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Ankur Shah
on 10 Aug 2020
Answered: Walter Roberson
on 25 Jan 2021
I have prepared a code in MATLAB with optimization toolbox which seems to be giving fair results for different optimization functions but at present, accuracy is highly dependent on the type of crossover selected.
To take advantage of different crossover and to improve efficiency, i want to apply a random crossover after every iteration i.e. any of Arithmetic, Scattered or Two-point. How can I do that ?
7 Comments
Walter Roberson
on 11 Aug 2020
options = optimoptions(options,'CrossoverFcn', @MyCustomCrossover)
function varargout = MyCustomCrossover(varargin)
crossfcns = {@crossoverarithmetic, @crossoverheuristic, @crossoveritnermediate, @crossoverscattered, @crossoversinglepoint, @crossovertwopoint};
chosen = crossfcns{randi(length(crossfcns))} ;
[varargout{:}] = chosen(varargin{:}) ;
end
Accepted Answer
Walter Roberson
on 25 Jan 2021
options = optimoptions(options,'CrossoverFcn', @MyCustomCrossover)
function varargout = MyCustomCrossover(varargin)
crossfcns = {@crossoverarithmetic, @crossoverheuristic, @crossoveritnermediate, @crossoverscattered, @crossoversinglepoint, @crossovertwopoint};
chosen = crossfcns{randi(length(crossfcns))} ;
[varargout{:}] = chosen(varargin{:}) ;
end
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More Answers (1)
Sulaymon Eshkabilov
on 11 Aug 2020
See the screen shot given in the attachement. You should select from the drop-down options whichever crossover function suits for your task.
3 Comments
Walter Roberson
on 24 Jan 2021
I show using a literally random crossover in https://www.mathworks.com/matlabcentral/answers/577609-how-to-apply-a-random-crossover-arithmetic-scattered-two-point-in-genetic-algorithm-using-auto-gen#comment_968707
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