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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： "VQ7Y`,+
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); Q;eY]l8
net.trainParam.show = 50; 1c*Xm MB
net.trainParam.lr = 0.05; %v<BE
tq
net.trainParam.epochs = 300; 9<1 dps=c
net.trainParam.goal = 1e-5; Kr@6m80E5
p = [-1 -1 2 2;0 5 0 5]; u:%Ln _S
t = [-1 -1 1 1]; yey]#M[y
net=train(net,p,t); }6 Mo C0
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 eDS, }Z'
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 Ws:MbZyr
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 - ~`)V`@
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 qW|_|%{U+
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 $3^Cp_p6
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 'Em63 3
TRAINGD, Performance goal met. a3SBEkC
a = sim(net,p) v1\/ dQK
plot(p,t,p,a,'o') iO{LsG*5Z
但是为什么老是报错： %<^j=K= 0
??? Input argument "net" is undefined. e3]v
*<bj
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