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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： L74Mz]v
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); hbjA xioA
net.trainParam.show = 50; N^^0j ,
net.trainParam.lr = 0.05; 'sNZFB#
net.trainParam.epochs = 300; 4
1_gak;
net.trainParam.goal = 1e-5; <v"o+
p = [-1 -1 2 2;0 5 0 5]; ! -gU~ 0
t = [-1 -1 1 1]; !> UlvT-
net=train(net,p,t); .
,7bGY 1$
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 0p.bmQSH
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 c :R ?da
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 NnZW@ln"|
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 Z$oy;j99y
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 |<%!9Z
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 0.aXg "
TRAINGD, Performance goal met. \& JZ
>h
a = sim(net,p) AeJ ;g
plot(p,t,p,a,'o') MB plh VK8
但是为什么老是报错： Cj5mM[:s
??? Input argument "net" is undefined. O*yxOb*
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