GWO structure help, please rewrite the code help

NumAgents = 7;

maxiters = 2000;

lb = [0 2];

ub = [1 5];

dim = 2;

fobj = @my_function_that_expects_a_vector_of_2_values;

GWO(Numagents, maxiters, lb, ub, dim, fobj)

I am executing this code after installing the GWO toolbox in my matlab directory.

error appears as:

Not enough input arguments.

Error in GWO (line 116)

set(handles.itertext,'String', ['The current iteration is ', num2str(l)])

Error in gwostrcture (line 14)

GWO(Numagents, maxiters, lb, ub, dim, fobj)

i am unable to detect the error. can any one help me to rectify this issue.

Answer 1

[Stephan]

NumAgents = 7;
maxiters = 2000;
lb = [0  2];
ub = [1  5];
dim = 2;
fobj = @my_function_that_expects_a_vector_of_2_values;
[BestScore, BestPos, CG_Curve] = GWO(NumAgents, maxiters, lb, ub, dim, fobj)

[manish kumar]

i am getting same error

[Stephan]

Please show your function - this example works properly:

NumAgents = 7;
maxiters = 2000;
lb = [0  2];
ub = [1  5];
dim = 2;
fobj = @(x) x(1).^2+x(2).^2;
[BestScore, BestPos, CG_Curve] = GWO(NumAgents, maxiters, lb, ub, dim, fobj)

[manish kumar]

this is my function

f=

(4804161458172084915439888952351367*x1^2)/633825300114114700748351602688000 + (11024762890340132617008770664173683865571*x2^2)/332306998946228968225951765070086144000

[Stephan]

This will work:

NumAgents = 7;
maxiters = 2000;
lb = [0 2];
ub = [1 5];
dim = 2;
fobj = @(x) (4804161458172084915439888952351367*x(1).^2)/633825300114114700748351602688000+...
    (11024762890340132617008770664173683865571*x(2).^2)/332306998946228968225951765070086144000;
[BestScore, BestPos, CG_Curve] = GWO(NumAgents, maxiters, lb, ub, dim, fobj);

easier and numerically the same:

fobj = @(x) 7.579630313443054*x(1).^2+33.176439031680047*x(2).^2;

[manish kumar]

lb = [0 2];

ub = [1 5];

dim = 2;

fobj = @(x) (4804161458172084915439888952351367*x(1).^2)/633825300114114700748351602688000+...

(11024762890340132617008770664173683865571*x(2).^2)/332306998946228968225951765070086144000;

[BestScore, BestPos, CG_Curve] = GWO(NumAgents, maxiters, lb, ub, dim, fobj);

ITS showing

Not enough input arguments.

Error in GWO (line 116)

set(handles.itertext,'String', ['The current iteration is ', num2str(l)])

[Stephan]

where are NumAgents and maxiters gone?

[manish kumar]

its were there in code but the error was same

[Stephan]

For me it worked properly. I loaded the GWO down from this source:

http://www.alimirjalili.com/SourceCodes/GWO.zip

and the code works without any problems.