% DATAMAT  Packs a vector of data (length N) into a datamatrix of dimension M-by-(N-M+1)%%   D = datamat(x,M)%%   INPUT%           x       vector of data%           M       data matrix window (frame) size%   OUTPUT%           D       M-by-(N-M+1) datamatrix%%%   Example    D = datamat([1 2 3 4 5 6 7 8 9],3)%%     will generate the following datamatrix,%%     D = | 3  4  5  6  7  8  9 |%         | 2  3  4  5  6  7  8 |%         | 1  2  3  4  5  6  7 |%%%   Copyright  (c) Rudolph van der Merwe (2002)%%   This file is part of the ReBEL Toolkit. The ReBEL Toolkit is available free for%   academic use only (see included license file) and can be obtained by contacting%   rvdmerwe@ece.ogi.edu.  Businesses wishing to obtain a copy of the software should%   contact ericwan@ece.ogi.edu for commercial licensing information.%%   See LICENSE (which should be part of the main toolkit distribution) for more%   detail.%===============================================================================================function dm=datamat(x,M);N=length(x);dm=zeros(N,M);i=0:N-M;ii=M:-1:1;im=repmat(ii',1,N-M+1)+repmat(i,M,1);dm=x(im);