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/*!
* \file
* \brief Signal processing routines test program
* \author Tony Ottosson, Thomas Eriksson, Pal Frenger, Tobias Ringstrom
* and Adam Piatyszek
*
* -------------------------------------------------------------------------
*
* Copyright (C) 1995-2010 (see AUTHORS file for a list of contributors)
*
* This file is part of IT++ - a C++ library of mathematical, signal
* processing, speech processing, and communications classes and functions.
*
* IT++ 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 3 of the License, or (at your option) any
* later version.
*
* IT++ 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 IT++. If not, see <http://www.gnu.org/licenses/>.
*
* -------------------------------------------------------------------------
*/
#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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