Hybrid Scheme in the Genetic Algorithm.

Why doesn't neither of the following codes compile?

 function  genetic()
    FitnessFcn = @dejong2fcn;
    numberOfVariables = 2;
    options = optimoptions(@ga,'PlotFcns',{@gaplotbestf,@gaplotstopping});
    rng('default');
    ga(FitnessFcn,numberOfVariables,[],[],[],[],[],[],[],options);
 end

.

 function hybrid()    
    fminuncOptions = optimoptions('Display','iter','Algorithm','quasi-newton');
    options = optimoptions('HybridFcn',{@fminunc, fminuncOptions});
    options = optimoptions(options,@ga,'PlotFcns',{@gaplotbestf,@gaplotstopping});
    ga(@dejong2fcn,numberOfVariables,[],[],[],[],[],[],[],options);
 end

I have written that code just like the following documentation.

Ref : Hybrid Scheme in the Genetic Algorithm

Then, what is the issue?

Answer 1

[Walter Roberson]

First one:

Undefined function or variable 'dejong2fcn'.

Second one: you have not properly passed the solver names in.

fminuncOptions = optimoptions(@fminunc,'Display','iter','Algorithm','quasi-newton');
options = optimoptions(@ga,'HybridFcn',{@fminunc, fminuncOptions});
options = optimoptions(options,'PlotFcns',{@gaplotbestf,@gaplotstopping});