How can I use GA to specific variants with discrete variables?

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Magdalena Gicala 2019-6-25

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https://ww2.mathworks.cn/matlabcentral/answers/468747-how-can-i-use-ga-to-specific-variants-with-discrete-variables

评论： Magdalena Gicala 2019-6-25

Good morning!

I'm optimizing using GA. In my problem I have several variants (eg A, B, C, ...) for which certain data are specified. I would like to choose the best variant but I do not know how to save this problem. Here, my variables are basically known and correlate with each other (eg for variant A variable 1 is 0.25 and variable 2 is 0.5, in variant B variable 1 is 0.4 and variable 2 is 0.7 etc.). Please help. There will be a lot of criteria functions and I do not know if GA is justified here.

Magda

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Answer 1

Stephan 2019-6-25

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https://ww2.mathworks.cn/matlabcentral/answers/468747-how-can-i-use-ga-to-specific-variants-with-discrete-variables#answer_380662

Maybe you are interested in this question - and of course the answer:

https://de.mathworks.com/matlabcentral/answers/401059-setup-discrete-values-for-decision-variables-in-optimization-problems

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Magdalena Gicala 2019-6-25

Thank you, Stephan!

I know this solution, but in my case the variables are interrelated and they together determine the given variant. For example, IF variable 1 is 0.25 and variable 2 is 0.5 THEN it is variant A, IF variable 1 is 0.4 and variable 2 is 0.7 THEN it is variant B etc. Then I have criteria such as cost and performance and I want to choose the best variant...

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