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\Neural Network Toolbox

Neural NetworkToolbox:

  \ \

PREPCA
(Principal component analysis)

:

[ptrans,transMat] = prepca(P,min_frac)

:

PREPCA . , . , , , , , (min_frac).

:

  • P - RxQ ;
  • min_frac .

:

  • Ptrans ;
  • TransMat .

.

, 2 . PRESTD , , PREPCA.

p=[-1.5 -0.58 0.21 -0.96 -0.79; -2.2 -0.87 0.31 -1.4 -1.2];
[pn,meanp,stdp] = prestd(p);
[ptrans,transMat] = prepca(pn,0.02);

p , .

.

, . , . , , . , , . PRESTD.

.

Jolliffe, Principal Component Analysis, Springer, 1986.

   \ \

 

:


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