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81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
/*
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* Histogram.hpp, part of LatAnalyze 3
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*
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* Copyright (C) 2013 - 2016 Antonin Portelli
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*
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* LatAnalyze 3 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LatAnalyze 3 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef Latan_Histogram_hpp_
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#define Latan_Histogram_hpp_
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#include <LatAnalyze/Global.hpp>
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#include <LatAnalyze/StatArray.hpp>
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BEGIN_LATAN_NAMESPACE
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/******************************************************************************
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* Histogram class *
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******************************************************************************/
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class Histogram
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{
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public:
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// constructor
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Histogram(void) = default;
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Histogram(const DVec &data, const double xMin, const double xMax,
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const Index nBin);
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Histogram(const DVec &data, const DVec &w, const double xMin,
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const double xMax, const Index nBin);
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// destructor
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virtual ~Histogram(void) = default;
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// generate from data
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void setFromData(const DVec &data, const double xMin, const double xMax,
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const Index nBin);
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void setFromData(const DVec &data, const DVec &w, const double xMin,
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const double xMax, const Index nBin);
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// normalize as a probablility
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void normalize(const bool n = true);
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bool isNormalized(void) const;
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// access
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Index size(void) const;
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const StatArray<double> & getData(void) const;
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const StatArray<double> & getWeight(void) const;
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double getX(const Index i) const;
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double operator[](const Index i) const;
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double operator()(const double x) const;
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// percentiles & confidence interval
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double percentile(const double p) const;
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double median(void) const;
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std::pair<double, double> confidenceInterval(const double nSigma) const;
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private:
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// resize
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void resize(const Index nBin);
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// histogram calculation
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void makeHistogram(void);
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// generate sorted indices
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void sortIndices(void);
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// compute normalization factor
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void computeNorm(void);
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private:
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StatArray<double> data_, w_;
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DVec x_, bin_;
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Vec<size_t> sInd_;
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double total_, norm_, xMax_, xMin_;
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bool normalize_{false};
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};
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END_LATAN_NAMESPACE
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#endif // Latan_Histogram_hpp_
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