Optimization running. Error running optimization. Too many input arguments.

I am working on genetic algorithm toolbox but i have a problem with creation function. i want to initialize real valued population by using creation function. my function is ;

function Chrom = crtrp(Nind,FieldDR) Chrom = rand(Nind,Nvar) .* FieldDR; end

in an another m. file, i identified FieldDR for boundaries. Is this a true approach? when i run the program the error occurs as

Error running optimization. Too many input arguments.

i could not understand why this occurs. Thanks.

PS: I am using MATLAB 2010a and Optimization Toolbox 5.0

Answer 1

[Alan Weiss]

According to the documentation http://www.mathworks.com/help/toolbox/gads/f6174dfi10.html#f14223 the syntax for a creation function is

function Population = myfun(GenomeLength, FitnessFcn, options)

The input arguments to the function are

Genomelength — Number of independent variables for the fitness function

FitnessFcn — Fitness function

options — Options structure

The function returns Population, the initial population for the genetic algorithm.

Does your creation function satisfy this syntax? I really can't tell, but I am sure you can tell. Also, as you probably know, you must tell GA to use your creation function by setting the CreationFunction option to your creation function.

Alan Weiss

MATLAB mathematical toolbox documentation

Answer 2

[b]

I could not create "options" in this function. In my project, i want to optimize media components of a fermentor. i think in that options part, i should write boundaries of independent variables. ??

Thanks for your interest..

Answer 3

[Alan Weiss]

I am not sure I understand what you mean when you say "I could not create "options" in this function." GA passes the existing options to your creation function, your function can query and use the values if you like, or ignore them if you like.

I do not understand your next statements either. Sorry.

Alan Weiss

MATLAB mathematical toolbox documentation

Answer 4

[b]

Sorry for that :) At that moment, i got exhausted. even i did not understand what i wrote.

Thanks for interest.