PWGLF/SPECTRA/PiKaPr/TOF/pPb502/lib/RooFermiCutoff.cxx

   1 /*****************************************************************************
   2  * Project: RooFit                                                           *
   3  *                                                                           *
   4  * This code was autogenerated by RooClassFactory                            *
   5  *****************************************************************************/
   6
   7 // Your description goes here...
   8
   9 #include "Riostream.h"
  10
  11 #include "RooFermiCutoff.h"
  12 #include "RooAbsReal.h"
  13 #include "RooAbsCategory.h"
  14 #include <math.h>
  15 #include "TMath.h"
  16
  17 ClassImp(RooFermiCutoff)
  18
  19  RooFermiCutoff::RooFermiCutoff(const char *name, const char *title,
  20                         RooAbsReal& _x,
  21                         RooAbsReal& _cutoff,
  22                         RooAbsReal& _power) :
  23    RooAbsPdf(name,title),
  24    x("x","x",this,_x),
  25    cutoff("cutoff","cutoff",this,_cutoff),
  26    power("power","power",this,_power)
  27  {
  28  }
  29
  30
  31  RooFermiCutoff::RooFermiCutoff(const RooFermiCutoff& other, const char* name) :
  32    RooAbsPdf(other,name),
  33    x("x",this,other.x),
  34    cutoff("cutoff",this,other.cutoff),
  35    power("power",this,other.power)
  36  {
  37  }
  38
  39
  40
  41  Double_t RooFermiCutoff::evaluate() const
  42  {
  43    return (1. / (TMath::Exp((cutoff - x) / power) + 1.));
  44  }
  45
  46
  47