rvget.m

模式识别工具包

%	rvget		- Get a single record from existing vertical data record postion
%
%	[data1]	= rvget(rno,vrecord,rrowsize);
%
%	mneumonic: get 'data' at 'rno' from 'vrecord' of 'rrowsize'
%
%	_____OUTPUT_____________________________________________________________
%	data1	: single data record obtained			(vrecord)
%
%	_____INPUT______________________________________________________________
%	vrecord	: a vertical record				(vrecords)
%	rno	: record # 					(scalar)
%	rrowsize: # rows per record				(scalar)
%
%	_____SEE ALSO___________________________________________________________
%	rvmake rvput rvshift
%
%	(C) 1997.12.22 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 [data1]	= rvget(rno,vrecord,rrowsize);

rstart	= (rno-1)*rrowsize+1;
rend	= rstart+rrowsize-1;

csize	= vrecord(rstart,1);
data1	= vrecord(rstart:rend,2:csize+1);