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Failure in initial user-supplied nonlinear constraint function evaluation

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ugur simsek
ugur simsek on 23 Jul 2021
Edited: Matt J on 23 Jul 2021
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.

Accepted Answer

Matt J
Matt J on 23 Jul 2021
Edited: Matt J on 23 Jul 2021
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.
  4 Comments
Matt J
Matt J on 23 Jul 2021
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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