ga_f37.m

书籍代码:遗传演算法原理与应用_活用MATLAB(Source Code)

function PI=GA_f37(x)
global MIN_offset Se Sde Su MDL
% Fitness function evaluation of Example 3-7

% PenChen Chou, 7-15-2001

Se =GA_round4dp(x(1));
Sde=GA_round4dp(x(2));
Su =GA_round4dp(x(3));
[T, X, Y]=sim(MDL,[0 6]);
in=Y(:,1); y=Y(:,2); err=abs(in-y).^2;
err=sum(err);
PI=err;
PI=MIN_offset-PI;
%fprintf('Se=%f;Sde=%f;Su=%f;PI=%f;\n',Se,Sde,Su,PI);