When I use GA app, how to put the constraints with absolute value

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SeungJu Choi
SeungJu Choi 2021-10-28
回答： Jaynik 2024-4-10
Now I using ga app.
I want to put the constraints in ga app.
That constraints is below.
I can put the first constraint(g1), but my problem is second constraint(g2).
The second constraint(g2) have absolute value, how to apply it?

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回答（1 个）

Jaynik
Jaynik 2024-4-10
Hi,
You can use the "abs" function for handling absolute values in the second constraint. Here is a sample code for the same:
g1 = sum(L(1:Ns) .* Ki(1:Ns)) / L - r1;
g2 = sum(abs(K(1:Ns-1) - K(2:Ns))) - r2;
You can read more about the "abs" function here:
https://www.mathworks.com/help/releases/R2019a/matlab/ref/abs.html
Hope this helps!

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