Neural Network Training/Optimization using Genetic Algorithm

I want to learn how can I train NN in Matlab NN tool box (or to optimize Weights and Neurons in hidden layer if it is possible). To do so I used the folowing code :

http://www.mathworks.fr/support/solutions/en/data/1-EFLUUB/?solution=1-EFLUUB

But I get an error message:

Undefined function 'gaoptimset' for input arguments of type 'char'.

Error in GANN (line 25) ga_opts = gaoptimset('TolFun', 1e-8,'display','iter');

Could someone help me to resolve this probleme. Thanks in advance

Note: I'm using MATLAB R2012b

Answer 1

[Alan Weiss]

Do you have a Global Optimization Toolbox license? Check with the ver command:

 ver

If you have a license, check that gaoptimset is on your path:

 which gaoptimset

If you have a function or variable named gaoptimset, delete it. If you hae a Global Optimization Toolbox license but gaotimset cannot be found, either reinstall MATLAB or get help from Technical Support.

Alan Weiss

MATLAB mathematical toolbox documentation

Answer 2

[nou2]

Thank you Alan for your response. Using the ver command It appears that I have the Optimization Toolbox Version 6.2.1 (R2012b). Using which gaoptimset I got the folowing message: C:\Program Files\MATLAB\R2012b\toolbox\globaloptim\globaloptim\gaoptimset.m % Has no license available (same thing for ga and globalSearch but not for fminsearch). Neveretheless when I go to Files\MATLAB\R2012b\toolbox\globaloptim\globaloptim\gaoptimset.m I find the code for all functions which seems to me paradoxal. I'll try to contact the Technical Support.