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\Neural Network Toolbox

Neural NetworkToolbox:

  \ \

TRAPCA

, prepca

:

[Ptrans] = trapca(P,TransMat)

:

TRAPCA , PREPCA. , , PREPCA. , .

:

  • P - RxQ ;
  • TransMat .

:

  • Ptrans- .

.

, 2%. PRESTD , .

p=[-1.5 -0.58 0.21 -0.96 -0.79; -2.2 -0.87 0.31 -1.4 -1.2];
t = [-0.08 3.4 -0.82 0.69 3.1];
[pn,meanp,stdp,tn,meant,stdt] = prestd(p,t);
[ptrans,transMat] = prepca(pn,0.02);
net = newff(minmax(ptrans),[5 1],{'tansig' 'purelin'},'trainlm');
net = train(net,ptrans,tn);

, TRASTD TRAPCA. POSTSTD.

p2 = [1.5 -0.8;0.05 -0.3];
[p2n] = trastd(p2,meanp,stdp);
[p2trans] = trapca(p2n,transMat);
an = sim(net,p2trans);
[a] = poststd(an,meant,stdt);

.

Ptrans = TransMat*P.

   \ \

 

:


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