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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： G?YKm1:w
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); 5a4;d+
net.trainParam.show = 50; 3<?(1kSo>>
net.trainParam.lr = 0.05; `) K1[&
net.trainParam.epochs = 300; t[0gN:s
net.trainParam.goal = 1e-5; ~
dmyS?Or
p = [-1 -1 2 2;0 5 0 5]; ~hz]x^:
t = [-1 -1 1 1]; Tpkm\_
net=train(net,p,t); Qv[@ioc
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 [
tm J6^s
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 " TG}a S
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 "EHwv2Hm>
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 q DL9
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 K]Ed-Tz8QZ
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 iQs(Dh= *
TRAINGD, Performance goal met. r@k&1*&
a = sim(net,p) q[**i[+%
plot(p,t,p,a,'o') }J"}poB:
但是为什么老是报错： ;pS
Wu9
??? Input argument "net" is undefined. :8\z 0
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