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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： +mJ
:PAy4
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); F;IP3tD
net.trainParam.show = 50; 4^ 0d)+Ff
net.trainParam.lr = 0.05; J?._/RL8-
net.trainParam.epochs = 300; i /NDWVFD
net.trainParam.goal = 1e-5; _^_5K(Uq
p = [-1 -1 2 2;0 5 0 5]; r0)JUc}Fyq
t = [-1 -1 1 1]; <_"B}c/2$
net=train(net,p,t); c*N50%=4
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 j(0Ilx|7v
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 9 wAA.
-"
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 m bF(tSy
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 1)$%Jr
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 MQwIPjk8
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 9 0X?1
TRAINGD, Performance goal met. *R5`.j =
a = sim(net,p) 3Bejp+xX
plot(p,t,p,a,'o') fZ[kh{|
但是为什么老是报错： Vd,' s
??? Input argument "net" is undefined. 0z<H(|
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