home *** CD-ROM | disk | FTP | other *** search
- function r = sprank(A)
- %SPRANK Sparse structural rank.
- % r = SPRANK(A) is the structural rank of the sparse matrix A.
- % Also known as maximum traversal, maximum assignment, and
- % size of a maximum matching in the bipartite graph of A.
- % Always sprank(A) >= rank(A), and in exact arithmetic
- % sprank(A) == rank(sprandn(A)) with probability one.
- %
- % See also DMPERM.
-
- % Copyright (c) 1984-93 by The MathWorks, Inc.
-
- r = sum(dmperm(A)~=0);
-