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An error 'matlabexecutionerror' occurred when i use 'min' in type optim.problemdef.OptimizationExpression

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昀泽 2024-9-7，10:00

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评论：昀泽 2024-9-7，13:13

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    prob = optimproblem('ObjectiveSense','maximize');
    
    A = optimvar('A', 2, 54, 41, 'Type', 'continuous', 'LowerBound', 0);
    
    X = sum(squeeze(A(1,:,:)) .* M); % 1*41
Unrecognized function or variable 'M'.
    Y = sum(squeeze(A(2,:,:)) .* N);
    f = 0.5*min(X+X,X+C)*P'-sum(sum(squeeze(A(1,:,:)).*U));  % It raises an error here when I try to use min(X+X,X+C).
    g = 0.5*min(Y+Y,D+Y)*Q'-sum(sum(squeeze(A(2,:,:)).*V)); 
    

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回答（1 个）

Torsten 2024-9-7，10:07

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编辑：Torsten 2024-9-7，10:07

"min" is not a supported operation for optimization variables:

https://uk.mathworks.com/help/optim/ug/supported-operations-on-optimization-variables-expressions.html

You will have to use "fcn2optimexpr" instead:

https://uk.mathworks.com/help/optim/ug/fcn2optimexpr.html

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昀泽 2024-9-7，13:13

Oh! Thanks for your help! Now it works!

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Mathematics and Optimization Optimization Toolbox Problem-Based Optimization Setup

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