GETSPECTRUM

Retrieve spectrum form pseudo-Euclidean (PE) mapping

    SPEC = GETSPECTRUM(W)
    SPEC = W*GETSPECTRUM
    SPEC = GETSPECTRUM(A)
    SPEC = A*GETSPECTRUM

Input
W	Pseudo-Euclidean mapping, W = PE_EM(D),  if D is a dissimilarity matrix
A	Pseudo-Euclidean dataset

Output
SPEC	Spectrum of PE mapping (PE_EM), ranked from most positive to most  negative

Description

The spectrum of a PE mapping is defined as the sorted set of eigenvalues  (from most positive to most negative) that are computed during the  training of the PE mapping by PE_EM. Note that the order of the features  of W and A may be different.

See also

datasets, mappings, pe_em, plotspectrum,