ppca.rar
Upload User: wrl7718
Upload Date: 20141107
Package size: 1k
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Category:
Algorithm
Development Platform:
Matlab
Detail: Probabilistic Principal Components Analysis. [VAR, U, LAMBDA] = PPCA (X, PPCA_DIM) computes the principal component subspace U of dimension PPCA_DIM using a centred covariancematrix X. The variable VAR contains the offsubspace variance (whichis assumed to be spherical ), while the vector LAMBDA contains thevariances of each of the principal components. This is computedusing the eigenvalue and eigenvector decomposition of X.

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