www.pudn.com > immunity.rar > crossover.m

function newpop=crossover(pop,pc,k) 
global N length M; 
pc=pc-(M-k)/M*1/20; 
A=1:N*length; 
% A=randcross(A,N,length); % 将数组A的次序随机打乱（可实现两两随机配对） 
for i=1:length 
    n1=A(i);n2=i+10; % 随机选中的要进行交叉操作的两个染色体 
    for j=1:N                     % N点（段）交叉 
           cpoint=length-round(length*pc);        % 这两个染色体中随机选择的交叉的位置 
           temp1=pop(n1,(j-1)*length+cpoint+1:j*length);temp2=pop(n2,(j-1)*length+cpoint+1:j*length); 
           pop(n1,(j-1)*length+cpoint+1:j*length)=temp2;pop(n2,(j-1)*length+cpoint+1:j*length)=temp1; 
    end       
    newpop=pop; 
end