objects.VertexAnalyzer.VertexAnalyzer Class Reference

Inheritance diagram for objects.VertexAnalyzer.VertexAnalyzer:

Public Member Functions
def	__init__
def	beginLoop
def	declareHandles
def	mindist
def	process
def	testGoodVertex
def	write

Public Attributes
	allVertices
	count
	doHists
	fixedWeight
	pileup

Static Public Attributes
int	fixedWeight = 1
	verbose = False
	vertexWeight = None,

Detailed Description

selects a list of good primary vertices,
and optionally add a pile-up weight to MC events.

The list of good primary vertices is put in event.goodVertices.
if no good vertex is found, the process function returns False.

The weight is put in event.vertexWeight, and is multiplied to
the global event weight, event.eventWeight. 

Example:

vertexAna = cfg.Analyzer(
  'VertexAnalyzer',
  goodVertices = 'goodPVFilter',
  vertexWeight = 'vertexWeightFall112011AB',
  # uncomment the following line if you want a vertex weight = 1 (no weighting)
  # fixedWeight = 1, 
  verbose = False
  )

If fixedWeight is set to None, the vertex weight is read from the EDM collection with module name
'vertexWeightFall112011AB'.
Otherwise, the weight is set to fixedWeight.

The vertex weight collection was at some point produced in the PAT+CMG step,
and could directly be accessed from the PAT or CMG tuple. 
In the most recent versions of the PAT+CMG tuple, this collection is not present anymore,
and an additional full framework process must be ran to produce this collection,
so that this analyzer can read it. An example cfg to do that can be found here:
http://cmssw.cvs.cern.ch/cgi-bin/cmssw.cgi/UserCode/CMG/CMGTools/H2TauTau/prod/vertexWeight2011_cfg.py?view=markup

Definition at line 10 of file VertexAnalyzer.py.

Constructor & Destructor Documentation

def objects.VertexAnalyzer.VertexAnalyzer.__init__	(		self,
			cfg_ana,
			cfg_comp,
			looperName
	)

Definition at line 45 of file VertexAnalyzer.py.

    def __init__(self, cfg_ana, cfg_comp, looperName):
        super(VertexAnalyzer, self).__init__(cfg_ana, cfg_comp, looperName)

        self.doHists=True
        if (hasattr(self.cfg_ana,'makeHists')) and (not self.cfg_ana.makeHists):
            self.doHists=False
        if self.doHists:    
            self.pileup = VertexHistograms('/'.join([self.dirName,
                                                     'pileup.root']))
        
        self.allVertices = self.cfg_ana.allVertices if (hasattr(self.cfg_ana,'allVertices')) else "_AUTO_"