How to create STOP button in GUI to stop my GA optimization?

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Hossein 2015-3-4

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https://ww2.mathworks.cn/matlabcentral/answers/181537-how-to-create-stop-button-in-gui-to-stop-my-ga-optimization

评论： Hossein 2015-3-5

I have a GUI with "Optimize" and "Stop" pushbuttons. Pressing "Optimize" will call "ga" command to run an optimization process with iteration display being on. Now, I'd like for the user to be able to stop the GA process whenever "Stop" button is clicked. Could you please help me how to invoke GA from GUI to stop and then retrieve the best set of parameters GA has found so far? Thanks!

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Answer 1

Alan Weiss 2015-3-5

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https://ww2.mathworks.cn/matlabcentral/answers/181537-how-to-create-stop-button-in-gui-to-stop-my-ga-optimization#answer_170217

Have your GUI call ga with an output function. As explained in the documentation,

"The output function returns the following arguments to ga:

state — Structure containing information about the current generation. The State Structure describes the fields of state. To stop the iterations, set state.StopFlag to a nonempty string."

Alan Weiss

MATLAB mathematical toolbox documentation