/usr/include/openturns/HistogramPolynomialFactory.hxx is in libopenturns-dev 1.9-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* @brief HistogramPolynomial polynomial factory
*
* Copyright 2005-2017 Airbus-EDF-IMACS-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
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef OPENTURNS_HISTOGRAMPOLYNOMIALFACTORY_HXX
#define OPENTURNS_HISTOGRAMPOLYNOMIALFACTORY_HXX
#include "openturns/OrthogonalUniVariatePolynomialFactory.hxx"
#include "openturns/LegendreFactory.hxx"
#include "openturns/Histogram.hxx"
BEGIN_NAMESPACE_OPENTURNS
/**
* @class HistogramPolynomialFactory
*
* Histogram polynomial factory
*/
class OT_API HistogramPolynomialFactory
: public OrthogonalUniVariatePolynomialFactory
{
CLASSNAME;
public:
/** Default constructor, associated with the default Histogram distribution */
HistogramPolynomialFactory();
/** Parameter constructor */
HistogramPolynomialFactory(const Scalar first,
const Point & width,
const Point & height);
/** Virtual constructor */
virtual HistogramPolynomialFactory * clone() const;
/** Calculate the coefficients of recurrence a0n, a1n, a2n such that
Pn+1(x) = (a0n * x + a1n) * Pn(x) + a2n * Pn-1(x) */
Coefficients getRecurrenceCoefficients(const UnsignedInteger n) const;
/** First accessor */
Scalar getFirst() const;
/** Width accessor */
Point getWidth() const;
/** Height accessor */
Point getHeight() const;
/** String converter */
String __repr__() const;
/** Method save() stores the object through the StorageManager */
virtual void save(Advocate & adv) const;
/** Method load() reloads the object from the StorageManager */
virtual void load(Advocate & adv);
private:
/** Compute dot products taking into account the singularities of the weights */
Point computeDotProduct(const OrthogonalUniVariatePolynomial & qN) const;
/** Underlying histogram */
const Histogram * p_histogram_;
/** Factory used to compute the dot-products */
LegendreFactory legendre_;
/** Cache to store the recurrence coefficients */
mutable CoefficientsPersistentCollection monicRecurrenceCoefficients_;
/** Cache to store the squared norm of the monic orthogonal polynomials */
mutable Point monicSquaredNorms_;
} ; /* class HistogramPolynomialFactory */
END_NAMESPACE_OPENTURNS
#endif /* OPENTURNS_HISTOGRAMPOLYNOMIALFACTORY_HXX */
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