bp_1.m

BP神经网络相关的MATLAB程序 下载后放在work文件夹中打开

P=[0.5571    0.5620    0.4768    0.8355    0.5473    0.5232    0.5970   
 0.6279    0.5769    0.6025    1.1452    1.0962    1.1952    1.1594    
1.3748    1.1241 0.9175    1.2097    1.3517    1.3826;
   0.2238    0.1381    0.2544    0.2906    0.2323    0.2811    0.1644   
 0.1850    0.2745    0.1459    0.5967    0.5947    0.2509    0.5552    
1.0638    0.6209 0.3586    0.3646    0.5061    0.8491];
%T=[ones(1,10) zeros(1,10)];
T=[-20:-11 11:20];
net=newff([0.46 1.4;0.12 1.1;],[10 20   1],{'tansig','tansig',
'purelin'});
%0.02 0.4
load part
p=part(1:20,1:2);
p=p';
p=p/100000;
p(2,:)=p(2,:).*20;

ppp=part(21:40,1:2);
ppp=ppp';
ppp=ppp/100000;
ppp(2,:)=ppp(2,:).*20;

%net.trainParam.epochs = 50;
net.trainParam.goal=10^-5;
net.trainParam.epochs=150;
%net.performFcn='msereg';
        net = train(net,p,T);
        Y = sim(net,p)
      plot(P,T,P,Y,'o')