particleswarm optimization in MATLAB

dear all i have an problem if any one can help me

when i used any example of particle swarm optimization , this example from help of particle swarm

fcn = @dejong5fcn;
       nvars = 2;
       lb = [-64 -64];
       ub = [64 64];
       [x,fval] = particleswarm(fcn,nvars,lb,ub)

it gives me this error i do not know why even though i have the particle swarm toolbox

Undefined function 'particleswarm' for input arguments of type 'function_handle'.

thank you

[Ced]

Which version of matlab are you using? They are part of the "Global Optimization Toolbox", but were only added in 2014b.

Your code runs without errors for me.

[jgg]

You also need to actually have the toolbox installed and as part of your license. The ver command should list your available toolboxes.

[mohammed hussein]

Thank you for answering Iam using MATALB 2015b full with optimization toolbox

Answer 1

[Walter Roberson]

particleswarm() is part of the Global Optimization Toolbox, not part of the Optimization Toolbox.

[mohammed hussein]

Thank you for answering Yes i have global optimization toolbox.also It was working before less than one month but today when I check it it doesn't work I don't know why

[Walter Roberson]

What do you get for

which -all particleswarm

[mohammed hussein]

it gives me

>> which -all particleswarm
C:\Program Files\MATLAB\R2015b\toolbox\globaloptim\globaloptim\particleswarm.m  % Has no license available

but it was working before so why there is no license available

thank you very much for your helping

[Walter Roberson]

Were you using a Trial version? If so it might have expired.

Were you using a Student Version license obtained through a MOOC (Massive Open Online Course) ? If so then it might have expired.

Were you using a Student Version license under one of the Term options such as "9 months" or "1 year" ? If so then it might have expired.