GETSIG

Retrieve the signature from a pseudo-Euclidean dataset or mapping

    SIG = GETSIG(W)
    SIG = GETSIG(A)
    SIG = W*GETSIG
    SIG = A*GETSIG
    {P,Q] = GETSIG(W)
    .....

Input
W	PE mapping, W = PE_EM(D), if D is a dissimilarity matrix
A	Dataset, vectors in PE space, A = D*W

Output
SIG	Signature, 2-element vector [P,Q] with numbers of dimensions of  the positive and the negative subspaces of the PE space.
P	Number of dimensions of the positive space.
Q	Number of dimensions of the negative space.

See also

datasets, mappings, setsig, pe_em, pe_distm,