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/*!
* \file
* \brief Signal processing routines test program
* \author Tony Ottosson, Thomas Eriksson, Pal Frenger, Tobias Ringstrom
* and Adam Piatyszek
*
* -------------------------------------------------------------------------
*
* IT++ - C++ library of mathematical, signal processing, speech processing,
* and communications classes and functions
*
* Copyright (C) 1995-2008 (see AUTHORS file for a list of contributors)
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* -------------------------------------------------------------------------
*/
#include <itpp/itsignal.h>
using namespace itpp;
using namespace std;
int main()
{
RNG_reset(12345);
vec x = randn(10);
vec y = randn(10);
int max_lag;
cout << "x = " << x << endl;
cout << "y = " << y << endl;
cout << "Testing cross correlation" << endl;
cout << "--------------------------------------------------------------------------" << endl;
cout << "xcorr(x,y) = " << xcorr(x,y) << endl;
max_lag = 0; cout << "xcorr(x,y,"<< max_lag <<") = " << xcorr(x,y,max_lag) << endl;
max_lag = 5; cout << "xcorr(x,y,"<< max_lag <<") = " << xcorr(x,y,max_lag) << endl;
max_lag = -1; cout << "xcorr(x,y,"<< max_lag <<") = " << xcorr(x,y,max_lag) << endl;
max_lag = 0; cout << "xcorr(x,y,"<< max_lag <<",biased) = " << xcorr(x,y,max_lag,"biased") << endl;
max_lag = 5; cout << "xcorr(x,y,"<< max_lag <<",biased) = " << xcorr(x,y,max_lag,"biased") << endl;
max_lag = -1; cout << "xcorr(x,y,"<< max_lag <<",biased) = " << xcorr(x,y,max_lag,"biased") << endl;
max_lag = 0; cout << "xcorr(x,y,"<< max_lag <<",unbiased) = " << xcorr(x,y,max_lag,"unbiased") << endl;
max_lag = 5; cout << "xcorr(x,y,"<< max_lag <<",unbiased) = " << xcorr(x,y,max_lag,"unbiased") << endl;
max_lag = -1; cout << "xcorr(x,y,"<< max_lag <<",unbiased) = " << xcorr(x,y,max_lag,"unbiased") << endl;
max_lag = 0; cout << "xcorr(x,y,"<< max_lag <<",coeff) = " << xcorr(x,y,max_lag,"coeff") << endl;
max_lag = 5; cout << "xcorr(x,y,"<< max_lag <<",coeff) = " << xcorr(x,y,max_lag,"coeff") << endl;
max_lag = -1; cout << "xcorr(x,y,"<< max_lag <<",coeff) = " << xcorr(x,y,max_lag,"coeff") << endl;
cout << "Testing auto correlation" << endl;
cout << "--------------------------------------------------------------------------" << endl;
cout << "xcorr(x) = " << xcorr(x) << endl;
max_lag = 0; cout << "xcorr(x,"<< max_lag <<") = " << xcorr(x,max_lag) << endl;
max_lag = 5; cout << "xcorr(x,"<< max_lag <<") = " << xcorr(x,max_lag) << endl;
max_lag = -1; cout << "xcorr(x,"<< max_lag <<") = " << xcorr(x,max_lag) << endl;
max_lag = 0; cout << "xcorr(x,"<< max_lag <<",biased) = " << xcorr(x,max_lag,"biased") << endl;
max_lag = 5; cout << "xcorr(x,"<< max_lag <<",biased) = " << xcorr(x,max_lag,"biased") << endl;
max_lag = -1; cout << "xcorr(x,"<< max_lag <<",biased) = " << xcorr(x,max_lag,"biased") << endl;
max_lag = 0; cout << "xcorr(x,"<< max_lag <<",unbiased) = " << xcorr(x,max_lag,"unbiased") << endl;
max_lag = 5; cout << "xcorr(x,"<< max_lag <<",unbiased) = " << xcorr(x,max_lag,"unbiased") << endl;
max_lag = -1; cout << "xcorr(x,"<< max_lag <<",unbiased) = " << xcorr(x,max_lag,"unbiased") << endl;
max_lag = 0; cout << "xcorr(x,"<< max_lag <<",coeff) = " << xcorr(x,max_lag,"coeff") << endl;
max_lag = 5; cout << "xcorr(x,"<< max_lag <<",coeff) = " << xcorr(x,max_lag,"coeff") << endl;
max_lag = -1; cout << "xcorr(x,"<< max_lag <<",coeff) = " << xcorr(x,max_lag,"coeff") << endl;
return 0;
}
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