Getting error " 'ga' requires Global Optimization Toolbox'' while running the global optimization command for a stalagmite function.

clear all
close all
clc

%inputs
x = linspace(0,0.6,150);
y = linspace(0,0.6,150);
[xx, yy] = meshgrid(x,y);
for i = 1:length(xx)
    for j = 1:length(yy)
        vector(1) = xx(i,j);
        vector(2) = yy(i,j);
        f(i,j)= stalagmite(vector);
    end
end
num_case = 50;


tic
%study_1 - Satistical behaviour 
for i = 1:num_case
    [inputs, fopt(i)] = ga(@stalagmite, 2);
    xopt(i) = inputs(1);
    yopt(i) = inputs(2);
end
study1_time = toc

figure(1)
subplot(2,1,1)
hold on
surfc(x,y,f)
shading interp
plot3(xopt,yopt,fopt,'marker','o','markersize',5,'markerfacecolor','r')
title('unbound inputs')
subplot(2,1,2)
plot(fopt)
xlabel('iteations')
ylabel('No of functions')

when i run this code i am getting the error as 'ga' requires Global Optimization Toolbox.

Answer 1

[Walter Roberson]

The message is correct. The function ga() is part of the Global Optimization Toolbox. You need to have the Global Optimization Toolbox installed and licensed in order to use Mathwork's ga() function.

ga() is not part of basic MATLAB.

[If I recall correctly, the Global Optimization Toolbox requires that you have the Optimization Toolbox installed and licensed.)

[chaitanya vallabh]

Thank you very much that worked.

[Steven Lord]

You recall correctly. See the Product Requirements page.