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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： 1$fA9u$
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); }k}5\%#li5
net.trainParam.show = 50; wX7B&w8wV
net.trainParam.lr = 0.05; 0Bn $C, -
net.trainParam.epochs = 300; EOV<|WF>
net.trainParam.goal = 1e-5; |B4dFI?
p = [-1 -1 2 2;0 5 0 5]; ;w?zmj<Dm
t = [-1 -1 1 1]; hHoc7
net=train(net,p,t); 6^['g-\2
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 L[+65ce%*
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 x>5#@SX
J
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 '< m[
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 * Yov>lO
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 J?5O 2n
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 1K,bmb xRt
TRAINGD, Performance goal met. 2o/}GIKj
a = sim(net,p) p`{9kH1m e
plot(p,t,p,a,'o') BZsw(l4/0'
但是为什么老是报错： }mz4 3Sq<
??? Input argument "net" is undefined. 33couAP#
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