Gabriele Cosmo
334 lines
10 KiB
C++
334 lines
10 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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/// \file biasing/ReverseMC01/src/Histo1DVar.cc
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/// \brief Implementation of the Histo1DVar class
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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//
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// MODULE: Histo1DVar.cc
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//
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// Version: 1.0
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// Date: 09/03/00
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// Author: P R Truscott
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// Organisation: DERA UK
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// Customer: ESA/ESTEC, NOORDWIJK
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// Contract: 12115/96/NL/JG Work Order No. 3
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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//
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// CHANGE HISTORY
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// --------------
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//
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// 30 June 1999, P R Truscott, DERA UK
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// Version number update 0.b.2 -> 0.b.3, but no functional change.
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//
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// 28 August 1999, F Lei & P R Truscott, DERA UK
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// Version number update 0.b.3 -> 0.b.4, but no functional change.
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//
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// 17 September 1999, P R Truscott, DERA UK
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// Version number update 0.b.4 -> 0.b.5, but no functional change.
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//
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// 09 March 2000, P R Truscott, DERA UK
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// Update 0.b.3 -> 1.0, for compliance with ISO ANSI C++ (no functional change).
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//
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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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////////////////////////////////////////////////////////////////////////////////
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//
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#include "Histo1DVar.hh"
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////////////////////////////////////////////////////////////////////////////////
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//
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Histo1DVar::Histo1DVar (G4String name, double *ep_list, size_t ep_list_len,
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side conv = LEFT)
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: theName(name)
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{
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//
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// Set the name of the histogram, define the VariableLengthPartition and
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// reset the contents of the histogram.
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//
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side conv_list[1] = {conv};
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part = VariableLengthPartition
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(ep_list, ep_list_len, conv_list, 1);
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length = part.total_bins();
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reset();
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return;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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Histo1DVar::Histo1DVar ()
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{
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//
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//
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// Set default name and partition, and reset the contents of the histogram.
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//
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theName = "Blank Array";
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part = VariableLengthPartition ();
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length= 0;
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reset();
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return;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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void Histo1DVar::reset ()
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{
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totalWeight.clear();
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meanPosition.clear();
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totalWeightSquared.clear();
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nEvents.clear();
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for (size_t i=0; i< length; i++) {
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totalWeight.push_back(0.);
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meanPosition.push_back(0.);
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totalWeightSquared.push_back(0.);
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nEvents.push_back(0);
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}
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underflowTotalWeight = 0.;
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overflowTotalWeight = 0.;
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meanUnderflowPosition = 0.;
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meanOverflowPosition = 0.;
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underflowTotalWeightSquared = 0.;
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overflowTotalWeightSquared = 0.;
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underflownEvents = 0;
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overflownEvents = 0;
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nAllEvents = 0;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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void Histo1DVar::fill (double data_point, double weight = 1.0)
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{
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//
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//
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// Determine the bin numbers for the point data_point.
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//
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int i = (part.get_elem_bin(&data_point));
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switch (i) {
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//
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//
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// If an underflow or overflow condition is present, then modify the overflow
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// or underflow variables, otherwise modify the conventional histogram
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// variables.
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//
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case BIN_OVERFLOW :
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overflowTotalWeight += weight;
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overflowTotalWeightSquared += weight*weight;
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meanOverflowPosition += data_point*weight; // saved as total for effiency
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overflownEvents++;
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break;
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case BIN_UNDERFLOW :
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underflowTotalWeight += weight;
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underflowTotalWeightSquared += weight*weight;
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meanUnderflowPosition += data_point*weight; // saved as total for effiency
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underflownEvents++;
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break;
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default:
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totalWeight[i] += weight;
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totalWeightSquared[i] += weight*weight;
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meanPosition[i] += data_point*weight; // saved as total for effiency
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nEvents[i]++;
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}
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nAllEvents++;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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double Histo1DVar::get_bin_value (HistSpecialBin specialBin)
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{
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double value(0.);
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switch (specialBin) {
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//
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//
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// Output the contents of the overflow, underflow or inrange bin depending
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// upon the value of specialBin.
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//
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case overflow_bin :
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value = overflowTotalWeight;
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break;
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case underflow_bin :
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value = underflowTotalWeight;
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break;
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case inrange :
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value = get_all_bins();
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break;
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}
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return value;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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double Histo1DVar::get_bin_error (HistSpecialBin specialBin)
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{
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double error(0.);
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switch (specialBin) {
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//
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//
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// Output the error of the overflow, underflow or inrange bin depending
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// upon the value of specialBin.
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//
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case overflow_bin :
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if (overflownEvents>0) {
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error = overflowTotalWeight/std::sqrt((G4double) overflownEvents);}
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else {
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error = 0.;}
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break;
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case underflow_bin :
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if (underflownEvents>0) {
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error = underflowTotalWeight/std::sqrt((G4double) underflownEvents);}
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else {
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error = 0.;}
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break;
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case inrange :
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error = 0.;
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if (nAllEvents-overflownEvents-underflownEvents>0) {
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for (size_t i=0; i<(part.total_bins()); i++) {
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error+=totalWeightSquared[i];}
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error = error/std::sqrt((G4double) nAllEvents-overflownEvents-underflownEvents);
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}
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break;
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}
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return error;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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double Histo1DVar::get_bin_value (int i)
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{
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//
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//
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// If i is within range, output the conventional histogram variables.
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// Otherwise output overflow or underflow variables.
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//
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double value(0.);
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if (i > int(part.total_bins()-1))
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{value = overflowTotalWeight;}
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else if (i < 0)
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{value = underflowTotalWeight;}
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else
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{value = totalWeight[i];}
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// cout << i << " " << value << " " << totalWeight[i] << endl;
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return value;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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double Histo1DVar::get_bin_error (int i)
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{
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//
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//
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// If i is within range, output the conventional histogram variables.
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// Otherwise output overflow or underflow variables.
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//
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double error(0.);
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if (i > int(part.total_bins())-1) {
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if (overflownEvents>0) {
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error = overflowTotalWeight/std::sqrt((G4double) overflownEvents);}
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else {
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error = 0.;}
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}
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else if (i < 0) {
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if (underflownEvents>0) {
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error = underflowTotalWeight/std::sqrt((G4double) underflownEvents);}
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else {
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error = 0.;}
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}
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else {
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if (nEvents[i]>0) {
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error = totalWeight[i]/std::sqrt((G4double) nEvents[i]);}
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else {
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error = 0.;}
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}
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return error;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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double Histo1DVar::get_bin_position (int i)
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{
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//
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//
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// If i is within range, output the conventional histogram variables.
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// Otherwise output overflow or underflow variables.
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//
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double value = 0.;
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if (i > int((part.total_bins()-1))) {
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if (overflownEvents > 0 ) value = meanOverflowPosition/overflowTotalWeight;
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}
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else if (i < 0) {
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if (underflownEvents > 0 ) value = meanUnderflowPosition/underflowTotalWeight;
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}
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else if (nEvents[i] > 0 ) value = meanPosition[i]/totalWeight[i];
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return value;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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double Histo1DVar::get_all_bins ()
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{
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//
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//
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// Sum up all bins, including overflow and underflow.
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//
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double sum = underflowTotalWeight + overflowTotalWeight;
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for (size_t i=0; i<(part.total_bins()); i++) {sum += totalWeight[i];}
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return sum;
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}
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////////////////////////////////////////////////////////////////////////////////
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//
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void Histo1DVar::div (double r)
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{
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//
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//
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// Divide all histogram (including underflow and overflow) variables by r.
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//
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overflowTotalWeight = overflowTotalWeight / r;
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overflowTotalWeightSquared = overflowTotalWeightSquared / r;
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meanOverflowPosition = meanOverflowPosition / r;
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underflowTotalWeight = underflowTotalWeight / r;
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underflowTotalWeightSquared = underflowTotalWeightSquared / r;
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meanUnderflowPosition = meanUnderflowPosition / r;
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for (size_t i = 0; i<(part.total_bins()); i++)
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{
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totalWeight[i] = totalWeight[i] / r;
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totalWeightSquared[i] = totalWeightSquared[i] / r;
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meanPosition[i] = meanPosition[i]/r;
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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