Making ordinal information.

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Description

For a given dissimilarity matrix Xi=(xi_{ij})_{n x n}, creating the ordinal information matrix whose row vectors are ordinal quadruples of indices: a row vector (i,j,k,l) means xi_{ij}<xi_{kl}.

Usage

1

Arguments

DM

A dissimilarity matrix.

Value

The matrix whose row vectors are ordinal quadruples of indices: a row vector (i,j,k,l) means xi_{ij}<xi_{kl}.

Author(s)

Yoshikazu Terada

Examples

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