message: Update AliAnalysisTaskLegendreCoef.h
  scaled background
diff: @@ -39,6 +39,7 @@ class AliAnalysisTaskLegendreCoef : public AliAnalysisTaskSE
  void GetMCPosBackground(TH2D* hist) { fMCPosBackgroundHist = hist; }
  void GetMCNegBackground(TH2D* hist) { fMCNegBackgroundHist = hist; }
  void GetMCChargedBackground(TH2D* hist) { fMCChargedBackgroundHist = hist; }
  + void GetNeventsCentHist(TH1D* hist) { fNeventCentHist = hist; }
  private:
  Double_t GetSingleAnCoef(int order, TH1D *hist); //method to get direct an
  @@ -65,6 +66,7 @@ class AliAnalysisTaskLegendreCoef : public AliAnalysisTaskSE
  TH2D* fMCPosBackgroundHist; //input MC background histogram for positive tracks (eta,cent)
  TH2D* fMCNegBackgroundHist; //input MC background histogram for negative tracks (eta,cent)
  TH2D* fMCChargedBackgroundHist; //input MC background histogram for positive and negative tracks (eta,cent)
  + TH1D* fNeventCentHist; //input Nevents vs centrality histogram
  AliEventCuts fEventCuts;
  AliAnalysisTaskLegendreCoef(const AliAnalysisTaskLegendreCoef&); // not implemented
  