chap7_3.m

matlab神经元网络的几个代码,动量下降法算法训练BP网络等

clear all;
close all;
echo on
clc
pause
clc
P=[-1,-2,3,1;
    -1,1,5,-3];
T=[-1,-1,1,1];
pause;
clc
net=newff(minmax(P),[3,1],{'tansig','purelin'},'traingdm');
inputWeights=net.IW{1,1};
inputbias=net.b{1};
layerWeights=net.LW{2,1}
layerbias=net.b{2}
pause
clc
net.trainParam.show=50;
net.trainParam.lr=0.05;
net.trainParam.mc=0.9;
net.trainParam.epochs=1000;
net.trainParam.goal=1e-3;
pause;
clc
[net,tr]=train(net,P,T);
pause
clc
A=sim(net,P)
E=T-A
MSE=mse(E)
pause
clc
echo off