check_km.m

模式识别工具包

%	check_km	- Check k-means (required by k-means)

%	(C) 2000.06.28 Kui-yu Chang
%	http://lans.ece.utexas.edu/~kuiyu

%	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
%	or check
%			http://www.gnu.org/

function [y] = check_km(x,m,weight);

xrep=ones(size(m,1),1)*x;
weight	= ones(size(m,1),1)*weight;
submean=xrep-m;
submean=submean.*weight;
rho=diag(submean*submean');
[y,ind]=min(rho);
y=ind;