%計(jì)算適應(yīng)度函數(shù)

function [f,p]=objf(s);

inn=size(s,1);   %有inn個(gè)個(gè)體
bn=size(s,2);    %個(gè)體長(zhǎng)度為bn

for i=1:inn
   x=n2to10(s(i,:));  %講二進(jìn)制轉(zhuǎn)換為十進(jìn)制
   xx=-1.0+x*3/(power(2,bn)-1);  %轉(zhuǎn)化為[-1,2]區(qū)間的實(shí)數(shù)
   f(i)=ft(xx);  %計(jì)算函數(shù)值，即適應(yīng)度
end
f=f';

%計(jì)算選擇概率
fsum=sum(f.*f);
ps=f.*f/fsum;

%計(jì)算累積概率
p(1)=ps(1);
for i=2:inn
   p(i)=p(i-1)+ps(i);
end
p=p';