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: 6I_W4`<VeZ
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); 8Jxo;Y
net.trainParam.show = 50; `+]4C+w
net.trainParam.lr = 0.05; x\x>_1oP
net.trainParam.epochs = 300; ~p8-#A)X,)
net.trainParam.goal = 1e-5; /p X\)wi
p = [-1 -1 2 2;0 5 0 5]; Z$HYXm
t = [-1 -1 1 1]; _?O'65
net=train(net,p,t); Bv!j.$0d{
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 aSKI%<?xN
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 `sJkOEc`
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 ;'R{b$B;|
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 $]xe,}*Af
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 P) GBuW
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 ic?6p
TRAINGD, Performance goal met. #Du1(R
a = sim(net,p) z#bOFVg#
plot(p,t,p,a,'o') x*bM C&Ea
但是为什么老是报错: Td"f(&Hk&
??? Input argument "net" is undefined. HtmJIH: