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GravityBin1D.h

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00001 // Emacs -*- C++ -*-
00002 #ifndef ANAPHE_GRAVITYBIN1D
00003 #define ANAPHE_GRAVITYBIN1D 1
00004 
00005 namespace Anaphe {
00006   namespace AIDA_Histogram_native {
00007 
00009 
00010 class GravityBin1D
00011 {
00012 public:
00014   GravityBin1D();
00016   ~GravityBin1D() { /*nop*/; }
00021   bool fill( double weight, double coord );
00023   bool reset();
00025   bool scale( double factor );
00027   bool increment( const GravityBin1D& otherBin );
00028   bool increment( int extraEntries,
00029                   double extraHeight,
00030                   double extraError,
00031                   double extraCentre );
00033   bool set( int entriesNew,
00034             double heightNew,
00035             double errorNew,
00036             double centreNew );
00038   int entries() const;
00040   double height() const;
00042   double error() const;
00044   double errorSquared() const;
00046   double centreOfGravityX() const;
00047 
00048 private:
00049   int     m_entries;
00050   double  m_sumOfWeights;
00051   double  m_sumOfWeightTimesCoord;
00052   double  m_sumOfSquaredWeights;
00053 };
00054 
00055   }
00056 }
00057 
00058 #include "GravityBin1D.inl"
00059 
00060 #endif /* ifndef ANAPHE_GRAVITYBIN1D */

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