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李琴李恺

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[求助] MATLAB BP神经网络 编程

我做BP神经网络,有如下编程,我设置训练次数10000次,我想要保存每次的训练结果即yxl,然后计算每次预测值与真实值之差的平方和,都保存下来,我该怎么改进这个程序,急需帮忙,万分感谢!
for i=1:113
    net.trainParam.epochs = 10000;%训练次数
    net.trainParam.goal=0.01;%网络性能目标,训练的目标误差
    net.trainParam.lr=0.05;%学习速率
    net=train(net,Pxl(i,',Txl(i));%训练神经网络
    j=1:10000;%j表示训练次数
    yxl(1,j)=sim(net,Pxl');%yxl为计算所得的预测值
    a(1,j)=sum((Txl-yxl(1,j)).^2); %Txl为真实值
    A=[];
    A=[A,a(1,j)];  
end
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