cross_over.m

利用遗传算法训练神经网络的matlab程序

function y=cross_over(chrom)
% [m,n]=size(chrom);
% temchrom=zeros(1,n);
% for i=1:2:m-1
% %      c=rand(1);
% %     temchrom=chrom(i,:);
% %     chrom(i,:)=c.*chrom(i,:)+(1-c).*chrom(i+1,:);
% %     chrom(i+1,:)=(1-c).*temchrom+c.*chrom(i+1,:);
%     c=rand(1);
%     temchrom=chrom(i,:);
%     chrom(i,:)=c.*chrom(i,:)+(1-c).*chrom(i+1,:);
%     chrom(i+1,:)=(1-c).*temchrom+c.*chrom(i+1,:);
% end
% y=chrom;
[m,n]=size(chrom);  %两点交叉
temchrom=zeros(1,n);
for i=1:2:m-1
    c=1+fix(n*rand(1,2));
    c_a=min(c);
    c_b=max(c);
    temchrom=chrom(i,:);
    chrom(i,c_a:c_b)=chrom(i+1,c_a:c_b);
    chrom(i+1,c_a:c_b)=temchrom(:,c_a:c_b);
end
y=chrom;