GA toolbox running error
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Hi, I want to use genetic algorithm in my code but I get this:" Error running optimization. Too many output arguments ". So, I tried to run the rastriginsfcn which is written on the help file in the optimization toolbox so that I can understand if there is something wrong with my MATLAB or not. I input @rastriginsfcn in Fitness function and 2 in Number of variables and then push the start but it does not work either and I get the same error. Can someone help me out?
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Answers (2)
Alan Weiss
on 24 Jul 2013
Please give the exact call you use and the exact exit message. Something like this:
[x,fval] = ga(@rastriginsfcn,2)
On my machine I get, at least for one run:
Optimization terminated: average change in the fitness value less than options.TolFun.
x =
0.9706 0.0063
fval =
1.1202
Alan Weiss
MATLAB mathematical toolbox documentation
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Bakrey Bsata
on 17 Apr 2022
Edited: Bakrey Bsata
on 17 Apr 2022
1- Open ga function as in the screenshot below with right click on ga word
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/967160/image.png)
2- check the function it must Open the right one as in the screenshot
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/967165/image.png)
and if it opens another one you have to delete or change it's name that function and keep the ga shown above.
3- Repeat the steps until it opens the Correct GA function shown above.
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