Public Member Functions
def	__init__ (self, name, histo, title="")

def	__str__ (self)

def	create (self, tdirectory)

Private Attributes
	_histo

	_name

	_title

Detailed Description

Class for making a cut efficiency histograms.

      N after cut
eff = -----------
        N total

Definition at line 899 of file plotting.py.

Constructor & Destructor Documentation

◆ init()

def plotting.CutEfficiency.__init__	(	self,
		name,
		histo,
		title = `""`
	)

Constructor

Arguments:
name  -- String for name of the resulting histogram
histo -- String for a source histogram (needs to be cumulative)

Definition at line 906 of file plotting.py.

     def __init__(self, name, histo, title=""):
         """Constructor
  
         Arguments:
         name  -- String for name of the resulting histogram
         histo -- String for a source histogram (needs to be cumulative)
         """
         self._name = name
         self._histo = histo
         self._title = title
  

Member Function Documentation

◆ str()

def plotting.CutEfficiency.__str__ ( self )

String representation, returns the name

Definition at line 917 of file plotting.py.

     def __str__(self):
         """String representation, returns the name"""
         return self._name
  

References FP420HitsObject._name, TrackerHitsObject._name, PGeometricDet::Item._name, TrackingRecHitAlgorithm._name, Logger._name, hcaldqm::DQModule._name, citk::IsolationConeDefinitionBase._name, DrellYanValidation._name, WValidation._name, hcaldqm::flag::Flag._name, hcaldqm::quantity::Quantity._name, HistoParams< T >._name, CutApplicatorBase._name, HistoParams< TH2F >._name, HistoParams< TProfile2D >._name, SequenceTypes.SequencePlaceholder._name, plotting.Subtract._name, plotting.Transform._name, plotting.FakeDuplicate._name, plotting.CutEfficiency._name, and SequenceTypes.TaskPlaceholder._name.

◆ create()

def plotting.CutEfficiency.create	(	self,
		tdirectory
	)

Create and return the cut efficiency histogram from a TDirectory

Definition at line 921 of file plotting.py.

     def create(self, tdirectory):
         """Create and return the cut efficiency histogram from a TDirectory"""
         histo = _getOrCreateObject(tdirectory, self._histo)
         if not histo:
             return None
  
         # infer cumulative direction from the under/overflow bins
         ascending = histo.GetBinContent(0) < histo.GetBinContent(histo.GetNbinsX())
         if ascending:
             n_tot = histo.GetBinContent(histo.GetNbinsX())
         else:
             n_tot = histo.GetBinContent(0)
  
         if n_tot == 0:
             return histo
  
         ret = histo.Clone(self._name)
         ret.SetTitle(self._title)
  
         # calculate efficiency
         for i in range(1, histo.GetNbinsX()+1):
             n = histo.GetBinContent(i)
             val = n/n_tot
             errVal = math.sqrt(val*(1-val)/n_tot)
             ret.SetBinContent(i, val)
             ret.SetBinError(i, errVal)
         return ret
  