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liangxiaoh

新虫 (小有名气)

[求助] bp神经网络 输出结果为什么全是1

clear;
p=[0
0.01473737;
0.031400901;
0.050124976;
0.071223157;
0.094964209;
0.121706489;
0.151808351;
0.185717741;
0.223882603;
0.266840469;
0.315263257;
0.369733294;
0.43105688;
0.500129904];

t=[0.1186;
0.2115;
0.2045;
0.1948;
0.3533;
0.4242;
0.4756;
0.6744;
0.7626;
0.8475;
0.9168;
0.9421;
1.09;
1.12;
1.0819];
p=p';
t=t';
net=newff((minmax(p)),[3,1],{'logsig','logsig'},'trainlm','learngdm','mse')
net.trainParam.epochs=200
net.trainParam.goal=0;
net=train(net,p,t)
p_test=[0.577893049;
0.665448258;
0.764031858;
0.875027997;
1];
p_test=p_test';
y=sim(net,p_test)
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