Why GA becomes error when we try to click running in second time?

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I wonder when I try to run the program optimization using GA in second time ,It becomes error but it will be running after i click many times to run.

Accepted Answer

Alan Weiss
Alan Weiss on 29 Jun 2015
I imagine that your nonlinear constraint function returns complex or Inf or NaN results for some population members. Remember, the initial population is, by default, random, and if your nonlinear constraint returns a non-real result for the initial population, then ga cannot continue.
To fix this, perhaps you can give tight bounds so that all nonlinear constraints are real. If you cannot do that, then you can simply give a feasible initial population. If you want a random initial population, then generate one, but make sure all population members are feasible (replace the ones that are not) before starting ga.
Alan Weiss
MATLAB mathematical toolbox documentation

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