function p = metis (A, mode)                                          %#ok
%METIS nested dissection ordering via METIS_NodeND
%
% Example:
%   p = metis(A)        returns p such chol(A(p,p)) is typically sparser
%                       than chol(A).  Uses tril(A) and assumes A is
%                       symmetric.
%   p = metis(A,'sym')  the same as p=metis(A).
%   p = metis(A,'col')  returns p so that chol(A(:,p)'*A(:,p)) is
%                       typically sparser than chol(A'*A).
%   p = metis(A,'row')  returns p so that chol(A(p,:)*A(p,:)') is
%                       typically sparser than chol(A'*A).
%
% A must be square for p=metis(A) or metis(A,'sym')
%
% Requires METIS, authored by George Karypis, Univ. of Minnesota.  This
% MATLAB interface, via CHOLMOD, is by Tim Davis.
%
% See also nesdis, bisect.

 % Copyright 2006-2023, Timothy A. Davis, All Rights Reserved.
 % SPDX-License-Identifier: GPL-2.0+

error ('metis mexFunction not found') ;