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// -*- C++ -*-
/**
* @brief The test file of class FunctionalBasisProcess
*
* Copyright 2005-2025 Airbus-EDF-IMACS-ONERA-Phimeca
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "openturns/OT.hxx"
#include "openturns/OTtestcode.hxx"
using namespace OT;
using namespace OT::Test;
int main(int, char *[])
{
TESTPREAMBLE;
OStream fullprint(std::cout);
try
{
const Scalar Tmin = 0.0;
const Scalar deltaT = 0.1;
const UnsignedInteger N = 11;
/* Initialization of the RegularGrid timeGrid1*/
RegularGrid timeGrid(Tmin, deltaT, N);
/* Functional basis */
UnsignedInteger basisDimension = 10;
Collection<Function> basis(basisDimension);
Collection<Distribution> coefficients(basisDimension);
UnsignedInteger oldPrecision = PlatformInfo::GetNumericalPrecision();
PlatformInfo::SetNumericalPrecision(20);
for (UnsignedInteger i = 0; i < basisDimension; ++i)
{
basis[i] = SymbolicFunction("x", String(OSS() << "sin(" << i << "*x)"));
coefficients[i] = Normal(0.0, (1.0 + i));
}
PlatformInfo::SetNumericalPrecision(oldPrecision);
Process process = FunctionalBasisProcess(JointDistribution(coefficients), basis);
/* Setting the timeGrid */
process.setTimeGrid(timeGrid);
/* Print of the process */
fullprint << "process = " << process << std::endl;
/* Initialization of the TimeSeries */
TimeSeries timeSerie = process.getRealization();
/* Full prints */
fullprint << "timeSerie = " << timeSerie << std::endl;
// Some steps further
UnsignedInteger stepNumber = 4;
fullprint << "One future=" << process.getFuture(stepNumber) << std::endl;
UnsignedInteger size = 3;
fullprint << "Some futures=" << process.getFuture(stepNumber, size) << std::endl;
}
catch (TestFailed & ex)
{
std::cerr << ex << std::endl;
return ExitCode::Error;
}
return ExitCode::Success;
}
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