adjtoedges.m

来自「该文件是用matlab开发的图论分析工具箱」· M 代码 · 共 37 行

function edges=adjtoedges(W)
%Function edges=adjtoedges(W) accepts an adjacency matrix and returns 
%   an Mx2 set of edges
%
%Inputs:    W - Adjacency matrix
%
%Outputs:   edges - Mx2 edge list
%
%
%5/15/03 - Leo Grady

% Copyright (C) 2002, 2003 Leo Grady <[e-mail]>
%   Computer Vision and Computational Neuroscience Lab
%   Department of Cognitive and Neural Systems
%   Boston University
%   Boston, MA  02215
%
% This program is free software; you can redistribute it and/or
% modify it under the terms of the GNU General Public License
% as published by the Free Software Foundation; either version 2
% of the License, or (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; if not, write to the Free Software
% Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
%
% Date - $Id: adjtoedges.m,v 1.2 2003/08/21 17:29:29 lgrady Exp $
%========================================================================%

[x,y]=find(triu(W));
edges=[x,y];