How to separate the Hybrid iteration from the MOGA iteration?

4 views (last 30 days)
Hi
I am using gamultiobj and I am activating the hybrid option.
I am woundering if there is any way to store the Pareto front before the hybrid function start, so I can assess its effect on the solution. Till now I can up with performing gamultiobj without hybrid for say 20 generation then I perform only one more generation of gamultiobj with hybrid. But by this why I can't yet seperate the hybrid function effect since it is still couple with 1 more itteration using GA. I tried to set the GA generation to zero but the matlab refused this settings.
You can find below the part of the code I am intrested in modifying
Thanks
%Without hybrid
for i=2:20
InitialPopulationMatrix_Data=population;
InitialScoresMatrix_Data=score;
[x,fval,exitflag,output,population,score] = MOGA_2_With_Intial(nvars,lb,ub,PopulationSize_Data,CrossoverFraction_Data,ParetoFraction_Data,MaxGenerations_Data,MaxStallGenerations_Data,FunctionTolerance_Data,ConstraintTolerance_Data,InitialPopulationMatrix_Data,InitialScoresMatrix_Data);
end
%%Hybrid
InitialScoresMatrix_Data=score;
InitialPopulationMatrix_Data=population;
MaxGenerations_Data=1;
[x,fval,exitflag,output,population,score] = MOGA_2_With_Hybrid(nvars,lb,ub,PopulationSize_Data,CrossoverFraction_Data,ParetoFraction_Data,MaxGenerations_Data,MaxStallGenerations_Data,FunctionTolerance_Data,ConstraintTolerance_Data,InitialPopulationMatrix_Data,InitialScoresMatrix_Data);

Answers (1)

Alan Weiss
Alan Weiss on 2 Dec 2019
You can use a custom output function to store the population and Pareto front at each generation. See Custom Output Function for Genetic Algorithm.
Alan Weiss
MATLAB mathematical toolbox documentation

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!