How do add constraints to an optimization problem, if the amount of constraints is changing depending of the input?

Question

Mike 2023-3-22

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回答： claudio 2023-3-22

采纳的回答： claudio

Hello all together,

I have troubles by adding constraints to my optimization problem.

optproblem.Constraints.constraint1 = ...

optproblem.Constraints.constraint2 = ...

and so on.

My problem is, that the amount of constraints depands on my input. Which means, that depending on my input data, I could e.g. have either 2 or 17 constraints. My question is: How could I name them "automatically" (from either 1 - 2, or from 1 - 17)? So in case of aboves example: Is there a way to "store" the strings "constraint1" and "constraint2" so that I can use them after the point - operator?

Thanks in advance!

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Answer 1

claudio 2023-3-22

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https://ww2.mathworks.cn/matlabcentral/answers/1933380-how-do-add-constraints-to-an-optimization-problem-if-the-amount-of-constraints-is-changing-dependin#answer_1198415

在 MATLAB Online 中打开

you can use a trick like this

% defining previously the number of constraints based on your imput
for kk = 1:numel(constraints)
    field = sprintf('constraint%d',kk);
    optproblem.Constraints.(field) = "constrain";
end