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/*!
* \file
* \brief Deterministic sources test program
* \author Tobias Ringstrom, Tony Ottosson 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>
#include <itpp/itstat.h>
#include <iomanip>
using namespace itpp;
using namespace std;
#define LOOP_SIZE 100000
#define THRESHOLD 1e-13
#define REALRUN(name,s) \
for (int i = 0; i < LOOP_SIZE; i++) \
real_result(i) = s(); \
show(name, mean(real_result), variance(real_result));
void show(const char *name, double sm, double sv)
{
cout << setw(18) << name << " "
<< setw(20) << round_to_zero(sm, THRESHOLD) << " "
<< setw(20) << round_to_zero(sv, THRESHOLD) << endl;
}
int main()
{
Sine_Source s10(20.0/LOOP_SIZE);
Square_Source s11(20.0/LOOP_SIZE);
Triangle_Source s12(20.0/LOOP_SIZE);
Sawtooth_Source s13(20.0/LOOP_SIZE);
Impulse_Source s14(20.0/LOOP_SIZE);
Pattern_Source s15(vec("1 3"));
RNG_reset(12345);
cout.setf(ios::fixed);
cout.precision(8);
cout << setw(18) << "Source" << " "
<< setw(20) << "sim mean" << " "
<< setw(20) << "sim var" << endl
<< "============================================================================" << endl;
vec real_result(LOOP_SIZE);
REALRUN("Sine", s10);
REALRUN("Square", s11);
REALRUN("Triangle", s12);
REALRUN("Sawtooth", s13);
REALRUN("Impulse", s14);
REALRUN("Pattern", s15);
return 0;
}
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