BP神经网络学习的代码

源代码，包括输入层、隐含层、输出层的设计，以及对神经网络的训练，部分代码如下： Alpha=0.1; Beta=0.1; Gamma=0.85; Tor=0.0005; Maxepoch=2000; Accuracy=0; Ntrain=115; Ntest=35; %assign random values in the range [-1, +1] V=2*(rand(h,i)-0.5); W=2*(rand(i,j)-0.5); Pi=2*(rand(1,i)-0.5); Tau=2*(rand(1,j)-0.5); DeltaWOld(i,j)=0; %set the delat of Wij to 0 DeltaVOld(h,i)=0; %set the delat of Vij to 0 DeltaPiOld(i)=0; %set the delat of Pi to 0 DeltaTauOld(j)=0; %set the delat of Tau to 0 % the learning process Epoch=1; Error=10; % load the training set data and test set data load data.dat