GA Optimization - Error Message

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Abderrahmane DADA 2019-8-31

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https://ww2.mathworks.cn/matlabcentral/answers/478379-ga-optimization-error-message

评论： Abderrahmane DADA 2019-9-2

采纳的回答： Walter Roberson

Hello.

I have an optimization problem that is to be solved through 3 iteration "t".

Starting from the 2nd iteration, the constraint function follows some conditions.

My problem is that my code runs only for the 1st iteration while for 2 remaining iterations, I always get the error message as indicated by the attached screenshot "Error Message".

Can you anyone help me dealing with and fixing the error I'm having?

Regards.

===============

NB:

Optimization code => OptimCode.m

Constraint Function => ConstFun.m (it calls the 2 functions, Layer_L_Fcn and Layer_U_Fcn to formulate some constraints)

Objective Function => ObjFun.m

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Walter Roberson 2019-9-1

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在 MATLAB Online 中打开

            C_Geom = [100 - x(7+(t-1)*m); ...
                      x(2+(t-1)*m)+x(7+(t-1)*m)*cos(deg2rad(x(8+(t-1)*m))) - 9500; ...
                      x(3+(t-1)*m)+x(7+(t-1)*m)*sin(deg2rad(x(8+(t-1)*m))) - 4500; ...
                      ];

emits 4 non-linear constraints in that case, where-as the other two branches emit 10. The code is expecting that the same number be emitted each time. You should put another 6 zeros on the bottom of that case.

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Abderrahmane DADA 2019-9-2

编辑：Abderrahmane DADA 2019-9-2

Thanks Walter for your answer.

That really works: starting from the 2nd condition, the sizes of my two constraints have to be the same for my code to run.

Thanks a lot again

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Matt J 2019-8-31

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编辑：Matt J 2019-8-31

在 MATLAB Online 中打开

Execute dbstop if error at the command line

>>dbstop if error

and then re-run the optimization. The code will pause execution where the error has occurred. Go inside your objective function using the Function Call Stack in the DEBUG panel and observe what has caused the error.