Question

matlab学习率怎么设置

Answer 1

lr就是学习率，performance是主要指标，你在程序里写的goal就是MSE，决定最后精度的。

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%% BP算法
function Out=bpnet(p,t,p_test)
global S1
net=newff(minmax(p),[S1,8],{'tansig','purelin'},'trainlm'); %trainlm训练函数最有效
%net=newff(P,T,31,{'tansig','purelin'},'trainlm');%新版用法
net.trainParam.epochs=1000;
net.trainParam.goal=0.00001;
net.trainParam.lr=0.01; %这是学习率
net=train(net,p,t);
Out=sim(net,p_test);
end