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发表于 2010-4-17 11:28:40
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来自 湖北武汉
我这有一个,你看看吧
P=[-1 -0.967213115 -0.93442623 -0.901639344 -0.868852459 -0.836065574 -0.803278689 -0.770491803 -0.737704918 -0.704918033 -0.672131148 -0.639344262 -0.606557377 -0.573770492 -0.540983607 -0.508196721 -0.475409836 -0.442622951 -0.409836066 -0.37704918 -0.344262295 -0.31147541 -0.278688525 -0.245901639 -0.213114754 -0.180327869 -0.147540984 -0.114754098 -0.081967213 -0.049180328 -0.016393443 0.016393443 0.049180328 0.081967213 0.114754098 0.147540984 0.180327869 0.213114754 0.245901639 0.278688525 0.31147541 0.344262295 0.37704918 0.409836066 0.442622951 0.475409836 0.508196721 0.540983607 0.573770492 0.606557377 0.639344262 0.672131148 0.704918033 0.737704918 0.770491803
];
T=[0.548765837 0.44545454 0.173763888 -0.457858373 -0.504125906 -0.534182382 -0.546308736 -0.543600736 -0.714565519 -0.493339418 -0.069372656 0.367990583 0.818139597 0.714591406 1 0.730253348 0.282998738 0.788827816 0.362411166 -0.433998543 0.480087081 -0.108566105 0.348075525 0.060821068 0.251724348 0.261245699 0.466720051 -0.149857764 0.315095475 0.280936669 0.045627241 -0.218426851 -0.458097245 -0.196460475 -0.171435169 -0.182324876 0.219568357 0.170785608 0.116901795 -0.526142118 -0.747709222 -1 -0.900194107 -0.617955369 -0.67138723 -0.586615549 -0.062413846 0.219895526 0.071842101 0.008130204 -0.125170218 0.111314888 0.117905001 0.123659658 0.147319324
];
p1=[0.803278689 0.836065574 0.868852459 0.901639344 0.93442623 0.967213115 1
];
t1=[0.323776919 0.084759261 0.158466075 0.488312762 0.688107146 0.808002177 0.668995794
];
net=newff(minmax(P),[12,1],{'tansig','logsig'},'traingdm');
net.trainparam.show=50;
net.trainparam.mc=0.9;
net.trainparam.lr=0.05;
net.trainparam.epochs=10000;
net.trainparam.goal=0.001;
[net,tr]=train(net,P,T);
y=sim(net,P);
figure(1);
[m,b,r]=postreg(y,T);
figure(2);
plot(tr.epoch,tr.perf,'r');
legend('训练');
ylabel('MSE(均方误差)');
xlabel('训练次数');
t2=sim(net,p1); |
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