x = 0:0.01:10;
y =  x + 10*sin(5*x)+7*cos(4*x);

figure
plot(x, y)
xlabel(‘independent variable‘)
ylabel(‘dependent variable‘)
title(‘GA：y = x + 10*sin(5*x) + 7*cos(4*x)利用算法求解最優解—Jason niu‘)


initPop = initializega(50,[0 10],‘fitness‘);  

[x endPop bpop trace] = ga([0 10],‘fitness‘,[],initPop,[1e-6 1 1],‘maxGenTerm‘,25,...
                           ‘normGeomSelect‘,0.08,‘arithXover‘,2,‘nonUnifMutation‘,[2 25 3]);
x
hold on
plot (endPop(:,1),endPop(:,2),‘ro‘)  

figure(2)
plot(trace(:,1),trace(:,3),‘b:‘)
title(‘GA算法的叠代進化曲線—Jason niu‘)
hold on
plot(trace(:,1),trace(:,2),‘r-‘)
xlabel(‘Generation‘); ylabel(‘Fittness‘);
legend(‘Mean Fitness‘, ‘Best Fitness‘)

GA：利用GA對一元函數進行優化過程，求x∈(0,10)中y的最大值——Jason niu