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How can I get an optimization algorithm (genetic algorithm in specific) to display the current best solution at each iteration?

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Sepideh
Sepideh on 22 Sep 2014
Closed: MATLAB Answer Bot on 20 Aug 2021
In gaoptimset, I set the display level 'display' to 'iter' and it prints the best value of the objective funtion at each iteration. But I would like to also see the best current solution (point) at each iteration. This is because sometimes the simulation takes so long that at a certain iteration, I need to stop the simulation and I would like to be able to access the best solution reached so far. Do you have any suggestions for me?

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Matt J
Matt J on 22 Sep 2014
Edited: Matt J on 22 Sep 2014
As I understood things, ga() will never throw away its best population member until a superior member is found. So the current population should always contain "the best".
In any case, you can capture anything you want with the OutputFcns option.

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