Failure in initial user-supplied nonlinear constraint function evaluation

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ugur simsek
ugur simsek 2021-7-23
编辑： Matt J 2021-7-23
Hi,
Basically, objective value is determined by Ansys analyses and the constraint function is dependent to a special sum
of x values. But, the initial value of constraint function can not be calculated. Can anyone point me about the problem? I attached the matlab file
and error message below.
Thank you
Error using ga (line 393)
Not enough input arguments.
Error in run_script (line 27)
[x,fval,output,population,exitflag] = ga(ObjectiveFunction,nvars,...
Caused by:
Failure in initial user-supplied nonlinear constraint function evaluation.

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采纳的回答

Matt J
Matt J 2021-7-23
编辑：Matt J 2021-7-23
One problem:
nonlcon = @simple_constraint;
There is no function called 'simple_constraint' in your attached script. There is a function called 'simple_const' which is never used.
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ugur simsek
ugur simsek 2021-7-23
It needs only integer variables as input assigned by the GA.Then this simple constraint function converts them a value. I could not understand why constraint function can not take the variables.
Matt J
Matt J 2021-7-23
编辑：Matt J 2021-7-23
ga() will try to pass a single vector argument to your constraint function (and nothing else). Your constraint function needs to be prepared for that

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