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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： s&l[GKR
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); Y;WrfO$J
net.trainParam.show = 50; rv[\2@}
net.trainParam.lr = 0.05; q ]aRJ`9f
net.trainParam.epochs = 300; e#
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net.trainParam.goal = 1e-5; =
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p = [-1 -1 2 2;0 5 0 5]; 4 KKNw 9L)
t = [-1 -1 1 1]; !E8JpE|z#
net=train(net,p,t); U7N <!6
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 4C$,X!kzF
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 ?bEYvHAzg
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 ~tWBCq 6
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 POf \l
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 k dqH36&<
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 \]D;HR`vo
TRAINGD, Performance goal met. b]~M$y60q
a = sim(net,p) D'X'h}+2
plot(p,t,p,a,'o') .T7ciD
但是为什么老是报错： VQCPgs
??? Input argument "net" is undefined. j8b:+io
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