TH2D

class TH2D : public TH1D, public TH2

    private:

      virtual Int_t Fill(Axis_t)
      virtual Int_t Fill(Axis_t, Stat_t)
      virtual Int_t Fill(Axis_t, Axis_t, Axis_t, Stat_t)

    public:

                 TH2D TH2D(const Text_t* name, const Text_t* title, Int_t nbinsx, Axis_t xlow, Axis_t xup, Int_t nbinsy, Axis_t ylow, Axis_t yup)
                 TH2D TH2D(const Text_t* name, const Text_t* title, Int_t nbinsx, Axis_t* xbins, Int_t nbinsy, Axis_t ylow, Axis_t yup)
                 TH2D TH2D(const Text_t* name, const Text_t* title, Int_t nbinsx, Axis_t xlow, Axis_t xup, Int_t nbinsy, Axis_t* ybins)
                 TH2D TH2D()
                 TH2D TH2D(const Text_t* name, const Text_t* title, Int_t nbinsx, Axis_t* xbins, Int_t nbinsy, Axis_t* ybins)
                 TH2D TH2D(const TH2D& h2d)
         virtual void ~TH2D()
              TClass* Class()
         virtual void Copy(TObject& hnew)
         virtual TH1* DrawCopy(Option_t* option)
        virtual Int_t Fill(Axis_t x, Axis_t y)
        virtual Int_t Fill(Axis_t x, Axis_t y, Stat_t w)
       virtual Stat_t GetCorrelationFactor(Int_t axis1 = 1, Int_t axis2 = 2)
       virtual Stat_t GetCovariance(Int_t axis1 = 1, Int_t axis2 = 2)
         virtual void GetStats(Stat_t* stats)
      virtual TClass* IsA() const
                TH2D& operator=(const TH2D& h1)
         virtual void Reset(Option_t* option)
         virtual void ShowMembers(TMemberInspector& insp, char* parent)
         virtual void Streamer(TBuffer& b)

  Data Members

Class Description

 Service class for 2-Dim histogram classes

  TH2C a 2-D histogram with one byte per cell (char)
  TH2S a 2-D histogram with two bytes per cell (short integer)
  TH2F a 2-D histogram with four bytes per cell (float)
  TH2D a 2-D histogram with eight bytes per cell (double)

*-*-*-*-*-*-*-*Return correlation factor between axis1 and axis2*-*-*-*-*
*-*            ====================================================

*-*-*-*-*-*-*-*Return covariance between axis1 and axis2*-*-*-*-*
*-*            ====================================================

 fill the array stats from the contents of this histogram
 The array stats must be correctly dimensionned in the calling program.
 stats[0] = sumw
 stats[1] = sumw2
 stats[2] = sumwx
 stats[3] = sumwx2
 stats[4] = sumwy
 stats[5] = sumwy2

*-*-*-*-*-*-*-*Reset this histogram: contents, errors, etc*-*-*-*-*-*-*-*
*-*            ===========================================

Inline Functions

              Int_t Fill(Axis_t, Axis_t, Axis_t, Stat_t)
              Int_t Fill(Axis_t x, Axis_t y)
              Int_t Fill(Axis_t x, Axis_t y, Stat_t w)
              TH2D& operator=(const TH2D& h1)
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)