# Why this code says unrecognized function u?

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I had a GA code which was generated by GA in earlier MATLAB version. But I had used there global variables. Later on, I replaced the global variables and passed them to function. All the three codes are in the attachments. You can run the m-file "main.m" and get the results. But now here in MATLAB 2022b, I run the code, and it gives me the following error:

Unrecognized function or variable 'u'.

Error in myGA1>@(b)Vectorized(b,u,Noise) (line 17)

ga(@(b)Vectorized(b,u,Noise),nvars,[],[],[],[],lb,ub,[],[],options);

Error in createAnonymousFcn>@(x)fcn(x,FcnArgs{:}) (line 11)

fcn_handle = @(x) fcn(x,FcnArgs{:});

Error in makeState (line 58)

firstMemberScore = FitnessFcn(state.Population(initScoreProvided+1,:));

Error in galincon (line 24)

state = makeState(GenomeLength,FitnessFcn,Iterate,output.problemtype,options);

Error in ga (line 416)

[x,fval,exitFlag,output,population,scores] = galincon(FitnessFcn,nvars, ...

Error in myGA1 (line 17)

ga(@(b)Vectorized(b,u,Noise),nvars,[],[],[],[],lb,ub,[],[],options);

Error in main (line 23)

[x,fval,time] = myGA1(nvars,lb,ub,PopulationSize_Data,MaxGenerations_Data,FunctionTolerance_Data,ConstraintTolerance_Data);

Caused by:

Failure in initial user-supplied fitness function evaluation. GA cannot continue.

##### 0 Comments

### Accepted Answer

the cyclist
on 20 Feb 2023

##### 5 Comments

the cyclist
on 20 Feb 2023

I don't have the Optimization Toolbox, so I can't really help you debug this.

Since we solved your original question here, I suggest that you accept my answer to this question, and open a new question. (I also don't fully understand what you are asking, so maybe give a little more detail about why you expect to see something different than what you are seeing.)

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