1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: TiaraMeasure.cc,v 1.4 2006/06/29 15:45:17 gunter Exp $ |
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27 | // GEANT4 tag $Name: $ |
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28 | // |
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29 | |
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30 | #include "TiaraMeasure.hh" |
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31 | |
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32 | TiaraMeasure::TiaraMeasure() : |
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33 | fEntries(0), |
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34 | fSum(0), |
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35 | fSumSquared(0) |
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36 | {} |
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37 | |
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38 | TiaraMeasure::~TiaraMeasure() |
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39 | {} |
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40 | |
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41 | void TiaraMeasure::Xin(G4double v) { |
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42 | fEntries++; |
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43 | fSum+=v; |
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44 | fSumSquared+=(v*v); |
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45 | }; |
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46 | |
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47 | G4int TiaraMeasure::GetEntries() const { |
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48 | return fEntries; |
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49 | } |
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50 | |
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51 | G4double TiaraMeasure::GetMean() const { |
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52 | G4double mean(0); |
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53 | if (fEntries>0) { |
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54 | mean = fSum / fEntries; |
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55 | } else { |
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56 | G4cout << "TiaraMeasure::GetMean(): fEntries<=0" << G4endl; |
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57 | } |
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58 | return mean; |
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59 | } |
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60 | |
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61 | G4double TiaraMeasure::GetVariance() const { |
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62 | G4double variance(-1); |
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63 | G4double mean(GetMean()); |
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64 | if (fEntries>1) { |
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65 | variance = (static_cast<double>(fEntries)/(fEntries - 1)) * |
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66 | (fSumSquared/fEntries - mean*mean); |
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67 | } else { |
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68 | G4cout << "TiaraMeasure::GetVariance(): fEntries<=0" << G4endl; |
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69 | } |
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70 | return variance; |
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71 | |
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72 | } |
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73 | |
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74 | G4double TiaraMeasure::GetSum() const { |
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75 | return fSum; |
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76 | } |
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77 | |
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78 | G4double TiaraMeasure::GetSumSquared() const { |
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79 | return fSumSquared; |
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80 | } |
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