Gabriele Cosmo
104 lines
3.5 KiB
C++
104 lines
3.5 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// G4StatDouble
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//
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// Class description:
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//
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// Class providing simple "one variable statistics" capability.
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// Original Author: Giovanni Santin (ESA) - October 2005 in GRAS tool
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// Adaptation and comments by: John Apostolakis (CERN) - November 2011
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// --------------------------------------------------------------------
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#ifndef G4StatDouble_hh
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#define G4StatDouble_hh 1
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#include "globals.hh"
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class G4StatDouble
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{
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public:
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G4StatDouble();
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G4StatDouble(G4double);
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virtual ~G4StatDouble() = default;
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G4StatDouble(const G4StatDouble&) = default;
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G4StatDouble& operator=(const G4double& rhs)
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{
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reset();
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fill(rhs);
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return *this;
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}
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G4StatDouble& operator=(const G4StatDouble& rhs) = default;
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G4StatDouble& operator+=(const G4double& rhs)
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{
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fill(rhs);
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return *this;
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}
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G4StatDouble& operator+=(const G4StatDouble& rhs)
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{
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add(&rhs);
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return *this;
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}
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void reset();
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void fill(G4double x, G4double weight = 1.);
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// Add new data point: value "x" with weight
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void scale(G4double);
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// Reset scale
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G4double mean() const;
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G4double rms();
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// The moments
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G4double mean(G4double ext_sum_w) const;
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// Mean scaled to sum of weights
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G4double rms(G4double ext_sum_w, G4int ext_n);
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// RMS scaled to sum of weights
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void add(const G4StatDouble*);
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// merge 2 statistics
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inline G4int n() const { return m_n; }
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inline G4double sum_w() const { return m_sum_w; }
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inline G4double sum_w2() const { return m_sum_w2; }
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inline G4double sum_wx() const { return m_sum_wx; }
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inline G4double sum_wx2() const { return m_sum_wx2; }
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protected:
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G4double rms(G4double sum_wx, G4double sum_wx2, G4double sum_w, G4int n);
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protected:
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G4double m_sum_wx = 0.0;
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G4double m_sum_wx2 = 0.0;
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G4int m_n = 0;
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G4double m_sum_w = 0.0;
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G4double m_sum_w2 = 0.0;
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G4double m_scale = 0.0;
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};
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#endif
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