TGraphAsymmErrors

class TGraphAsymmErrors : public TGraph

    public:

      TGraphAsymmErrors TGraphAsymmErrors()
      TGraphAsymmErrors TGraphAsymmErrors(Int_t n)
      TGraphAsymmErrors TGraphAsymmErrors(Int_t n, Float_t* x, Float_t* y, Float_t* exl = 0, Float_t* exh = 0, Float_t* eyl = 0, Float_t* eyh = 0)
      TGraphAsymmErrors TGraphAsymmErrors(Int_t n, Double_t* x, Double_t* y, Double_t* exl = 0, Double_t* exh = 0, Double_t* eyl = 0, Double_t* eyh = 0)
      TGraphAsymmErrors TGraphAsymmErrors(TGraphAsymmErrors&)
           virtual void ~TGraphAsymmErrors()
         static TClass* Class()
           virtual void ComputeRange(Double_t& xmin, Double_t& ymin, Double_t& xmax, Double_t& ymax)
       virtual Double_t GetErrorX(Int_t bin) const
       virtual Double_t GetErrorY(Int_t bin) const
              Double_t* GetEXhigh() const
              Double_t* GetEXlow() const
              Double_t* GetEYhigh() const
              Double_t* GetEYlow() const
        virtual TClass* IsA() const
           virtual void Paint(Option_t* chopt)
           virtual void Print(Option_t* chopt) const
           virtual void SavePrimitive(ofstream& out, Option_t* option)
           virtual void SetPoint(Int_t i, Double_t x, Double_t y)
           virtual void SetPointError(Int_t i, Double_t exl, Double_t exh, Double_t eyl, Double_t eyh)
           virtual void ShowMembers(TMemberInspector& insp, char* parent)
           virtual void Streamer(TBuffer& b)
                   void StreamerNVirtual(TBuffer& b)

  Data Members

    protected:

      Double_t* fEXlow   [fNpoints] array of X low errors
      Double_t* fEXhigh  [fNpoints] array of X high errors
      Double_t* fEYlow   [fNpoints] array of Y low errors
      Double_t* fEYhigh  [fNpoints] array of Y high errors

Class Description

   A TGraphAsymmErrors is a TGraph with assymetric error bars.
   The various format options to draw a TGraphAsymmErrors are explained in
     TGraphAsymmErrors::Paint.

  The picture below has been generated by the following macro:
------------------------------------------------------------------------
{
   gROOT->Reset();
   c1 = new TCanvas("c1","A Simple Graph with error bars",200,10,700,500);

   c1->SetFillColor(42);
   c1->SetGrid();
   c1->GetFrame()->SetFillColor(21);
   c1->GetFrame()->SetBorderSize(12);

   Int_t n = 10;
   Double_t x[n]  = {-0.22, 0.05, 0.25, 0.35, 0.5, 0.61,0.7,0.85,0.89,0.95};
   Double_t y[n]  = {1,2.9,5.6,7.4,9,9.6,8.7,6.3,4.5,1};
   Double_t exl[n] = {.05,.1,.07,.07,.04,.05,.06,.07,.08,.05};
   Double_t eyl[n] = {.8,.7,.6,.5,.4,.4,.5,.6,.7,.8};
   Double_t exh[n] = {.02,.08,.05,.05,.03,.03,.04,.05,.06,.03};
   Double_t eyh[n] = {.6,.5,.4,.3,.2,.2,.3,.4,.5,.6};
   gr = new TGraphAsymmErrors(n,x,y,exl,exh,eyl,eyh);
   gr->SetTitle("TGraphAsymmErrors Example");
   gr->SetMarkerColor(4);
   gr->SetMarkerStyle(21);
   gr->Draw("ALP");

   c1->Update();
}

/*

*/

*-*-*-*-*-*-*-*-*-*-*TGraphAsymmErrors default constructor*-*-*-*-*-*-*-*-*-*-*-*
*-*                  =====================================

*-*-*-*-*-*-*-*-*-*-*TGraphAsymmErrors normal constructor*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ====================================

  the arrays are preset to zero

*-*-*-*-*-*-*-*-*-*-*TGraphAsymmErrors normal constructor*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ====================================

  if exl,h or eyl,h are null, the corresponding arrays are preset to zero

*-*-*-*-*-*-*-*-*-*-*TGraphAsymmErrors normal constructor*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ====================================

  if exl,h or eyl,h are null, the corresponding arrays are preset to zero

*-*-*-*-*-*-*-*-*-*-*TGraphAsymmErrors default destructor*-*-*-*-*-*-*-*-*-*-*-*-*
*-*                  ===============================

    This function is called by GraphFitChisquare.
    It returns the quadratic error along X at point i.

    This function is called by GraphFitChisquare.
    It returns the quadratic error along Y at point i.

 Paint this TGraphAsymmErrors with its current attributes

 by default horizonthal and vertical small lines are drawn at
 the end of the error bars. if option "z" or "Z" is specified,
 these lines are not drawn.

*-*-*-*-*-*-*-*-*-*-*Print graph and errors values*-*-*-*-*-*-*-*-*-*-*-*
*-*                  =============================

 Save primitive as a C++ statement(s) on output stream out

*-*-*-*-*-*-*-*-*-*-*Set x and y values for point number i*-*-*-*-*-*-*-*-*
*-*                  =====================================

*-*-*-*-*-*-*-*-*-*-*Set ex and ey values for point number i*-*-*-*-*-*-*-*
*-*                  =======================================

 Stream an object of class TGraphAsymmErrors.

Inline Functions

                Double_t* GetEXlow() const
                Double_t* GetEXhigh() const
                Double_t* GetEYlow() const
                Double_t* GetEYhigh() const
                  TClass* Class()
                  TClass* IsA() const
                     void ShowMembers(TMemberInspector& insp, char* parent)
                     void StreamerNVirtual(TBuffer& b)
        TGraphAsymmErrors TGraphAsymmErrors(TGraphAsymmErrors&)