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Create Custom Plot Function For GA matlab

Smoggy Sheep answered on February 15, 2022 Popularity 1/10 Helpfulness 1/10

answer Create Custom Plot Function For GA matlab

Create Custom Plot Function For GA matlab

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function state = gaplotchange(options, state, flag)
% GAPLOTCHANGE Plots the logarithmic change in the best score from the 
% previous generation.
%   
persistent last_best % Best score in the previous generation

if(strcmp(flag,'init')) % Set up the plot
    xlim([1,options.MaxGenerations]);
    axx = gca;
    axx.YScale = 'log';
    hold on;
    xlabel Generation
    title('Log Absolute Change in Best Fitness Value')
end

best = min(state.Score); % Best score in the current generation
if state.Generation == 0 % Set last_best to best.
    last_best = best;
else
	change = last_best - best; % Change in best score 
	last_best = best;
    if change > 0 % Plot only when the fitness improves
        plot(state.Generation,change,'xr');
    end
end

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Source: www.mathworks.com

Tags: function matlab plot whatever

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