static void SmoothGraph(TGraph *graph, Double_t delta);
static Int_t GetNearest(TGraph *graph, Double_t xref, Double_t &dx, Double_t &y);
static Double_t EvalGraphConst(TGraph * const graph, Double_t xref);
static void SmoothGraph(TGraph *graph, Double_t delta);
static Int_t GetNearest(TGraph *graph, Double_t xref, Double_t &dx, Double_t &y);
static Double_t EvalGraphConst(TGraph * const graph, Double_t xref);