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： G0!6rDu2,
net=newff([-1 2; 0 5],[3,1],{'tansig','purelin'},'traingd'); CN(-Jd.b
net.trainParam.show = 50; *g*"bi*
net.trainParam.lr = 0.05; _*UI}JtlS
net.trainParam.epochs = 300; c/88|k
net.trainParam.goal = 1e-5; ^ f>c_[fR
p = [-1 -1 2 2;0 5 0 5]; mC@v,"
t = [-1 -1 1 1]; ;+ C$EJw-
net=train(net,p,t); 9IXy96 ]]6
TRAINGD, Epoch 0/300, MSE 1.59423/1e-05, Gradient 2.76799/1e-10 ~ zfF*A
TRAINGD, Epoch 50/300, MSE 0.00236382/1e-05, Gradient 0.0495292/1e-10 A-L1vu;
TRAINGD, Epoch 100/300, MSE 0.000435947/1e-05, Gradient 0.0161202/1e-10 0p[k7W u
TRAINGD, Epoch 150/300, MSE 8.68462e-05/1e-05, Gradient 0.00769588/1e-10 4G:~|N.{p
TRAINGD, Epoch 200/300, MSE 1.45042e-05/1e-05, Gradient 0.00325667/1e-10 3r#['UmT
TRAINGD, Epoch 211/300, MSE 9.64816e-06/1e-05, Gradient 0.00266775/1e-10 ! (lF#MG}
TRAINGD, Performance goal met. 6p
}a!
a = sim(net,p) cZ )JvU9]
plot(p,t,p,a,'o') ? ch?q~e)
但是为什么老是报错： dH5*%
??? Input argument "net" is undefined. vTFG*\Cq
