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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： {wS i?;[Gq
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); W|P AI [N
net.trainParam.show = 50; /J `}o}
net.trainParam.lr = 0.05; OM EwGr(
net.trainParam.epochs = 300; RD`|Z~:q:K
net.trainParam.goal = 1e-5; 579Q&|L.
p = [-1 -1 2 2;0 5 0 5]; Gs : g
t = [-1 -1 1 1]; )~' UJPK
net=train(net,p,t); %['NPs%B
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 s< tG
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 '(]W tx%9"
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 (Jq m9
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 ?eJ' $
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 bb_elmb)n
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 ?$pNd uE
TRAINGD, Performance goal met. <& eJIz=
a = sim(net,p) jFQ y[k-B
plot(p,t,p,a,'o') =ejcP&- V/
但是为什么老是报错： 4 H 6t" X
??? Input argument "net" is undefined. xU;SRB
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