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genghaiteng

½ð³æ (³õÈëÎÄ̳)

[ÇóÖú] ²»Ã÷°×Õâ¸ö³ÌÐòµ½µ×ʲôÒâ˼£¿

p=[     ];
t=[     ];
[pn,minp,maxp]=premnmx(p);
[tn,mint,maxt]=premnmx(t);
net=newff(minmax(pn),[5,1],{'tansig','purelin'},'trainlm');
net.trainParam.epochs=2000;
net.trainParam.goal=1e-5;
net=train(net,pn,tn);
inputWeights=net.IW{1,1}
inputBias=net.B{1}
layerWeights=net.LW{2,1}
layerBias=net.B{2}
a=sim(net,pn);
y=postmnmx(a,mint,maxt)
E=y-t;
MSE=mse(E)
echo off
pause
clc
ÕâÊÇͬѧдµÄÒ»¸öMatlab³ÌÐò£¬¹ØÓÚBPÈ˹¤Éñ¾­ÍøÂçµÄ£¬Ç°Ã滹ÄÜ¿´¶®£¬°ÑÁ½¸ö¾ØÕóÊäÈ룬£Ð£¬£Ô¡£Ö®ºó½¨Á¢ÍøÂ磬ѵÁ·ÍøÂ磬²âÊÔÍøÂ磬֮ºóµÄ³ÌÐòÈçÏ£¬ÎҾͲ»ÖªµÀÿ¾äÓïÑÔʲôÒâ˼£¬ÊÇΪÁËʲôÁË£¿×îºóÊÇ·ñ¿ÉÒÔÄâºÏ³ö£Ð£¬£ÔÖ®¼äµÄ·½³Ì¹ØÏµÄØ£¿ÇëÖªµÀµÄÅóÓѲ»Áߴͽ̣¬ÔÚ´ËÏÈл¹ýÁË£¡
inputWeights=net.IW{1,1}
inputBias=net.B{1}
layerWeights=net.LW{2,1}
layerBias=net.B{2}
a=sim(net,pn);
y=postmnmx(a,mint,maxt)
E=y-t;
inputWeights =
  -22.9726   -8.7862  -22.3638  -15.6721  -10.8787   15.0537  -15.1881   14.5200
   -0.6975   -9.5565    6.3260    0.1778   -5.3363   -0.0671   -0.7975   -0.1910
    0.0255  -38.0794   38.3522   15.1408   -0.1763   15.4782   14.6513  -10.2823
    1.8507    0.3361   -0.0245    0.2974    3.2154    0.1128    0.8411    0.2689
  -10.6646    4.1729  -15.9297   31.9932   29.3572   32.2162  -31.3814  -29.4435
inputBias =
  -24.1565
   -8.0054
  -16.6976
    0.5623
   22.3937
layerWeights =
    0.0966   -0.4004   -0.2790    0.2978    0.1129
layerBias =
   -0.0811
y =

  Columns 1 through 10
   99.1039   99.4159   99.4926   99.4736   98.6878   98.6135   99.2976   99.4545   99.3613   97.5330
  Columns 11 through 20
   99.4792   98.6530   99.0905   97.5171   99.5342   99.5275   98.9825   98.7439   99.4544   97.5147
  Columns 21 through 30
   99.3120   98.6993   98.9761   99.5732   97.5752   99.5834   99.4562   98.9081   99.0795   98.8758
  Columns 31 through 40
   99.1891   99.4911   99.4662   98.2656   99.3682   99.4381   98.6138   99.2973   99.4348   99.2990
  Columns 41 through 48
   99.4339   99.3948   99.4653   99.4315   99.4315   99.4315   99.4315   99.4315
ÕâÊÇÔËÐд¦µÄ½á¹û£¬¶¼Ê²Ã´Òâ˼°¡£¿ÍêÈ«²»¶®¡£
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