nn.m

神经网络BP网络的计算程序

%BP神经网络计算程序
tic
X=zeros(7,41);
Y=zeros(1,41);
[X,Y]=datain(X,Y);                                                           %输入样本数据
[X,m1,m2]=premnmx(X);
n2=14;
n3=size(Y,1);  
net=newff(minmax(X),[n2,n3],{'logsig','logsig'},'traingdm');
net.trainparam.epochs=15000;
net.trainparam.goal=0.001;
net.trainparam.show=1000;
net.trainparam.lr=0.7;
net=init(net);
[net,TR,y,E]=train(net,X,Y);
y1=ceshi(net,m1,m2);
toc