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2010-05-03 22:43 |
新手求助~（关于初级的神经网络问题）
各位大虾，我在网上看到的教程里的一个程序段，本来想要试试看的： =&nW~<- v
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); :"1|AJo)
net.trainParam.show = 50; -i jC_ `>
net.trainParam.lr = 0.05; W 7sn+g \
net.trainParam.epochs = 300; R2<s0l
net.trainParam.goal = 1e-5; BuOgOYh9
p = [-1 -1 2 2;0 5 0 5]; ravyiO L
t = [-1 -1 1 1]; pG3k
net=train(net,p,t); |nUl\WRd\
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 -NJ!g/ >mM
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 jgv`>o%<W
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 x;s0j"`Jb
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 U/ od~29
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 j<< 3Pr
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 2J GL;U$
TRAINGD, Performance goal met. iUi>y.}"P
a = sim(net,p) Xf[kI
plot(p,t,p,a,'o') \ 0W!4D
但是为什么老是报错： dT"hNHaf
??? Input argument "net" is undefined. }; L ^w :
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