message: the fit function of weight
diff: @@ -462,7 +462,7 @@ void SetFunction(TF1* weightfit){fweightfit=weightfit;}
  TH2D *fHistodPhiSdEtaSElectronBachelorR125RSMix;//!<! dPhiS vs dEtaS R125 RS Mix
  TH2D *fHistodPhiSdEtaSElectronBachelorR125WSMix;//!<! dPhiS vs dEtaS R125 WS Mix
  - TF1 * fweightfit;// implement weight function
  + TF1 * fweightfit;// implement the fit function of weight
  //Mixing
  