eventstfile.Events Class Reference

Inheritance diagram for eventstfile.Events:

Public Member Functions
def	__init__ (self, filename, treename, options=None)
def	__iter__ (self)
def	size (self)
def	to (self, iEv)

Public Attributes
	file
	tree

Detailed Description

Event list from a tree in a root file.

Definition at line 6 of file eventstfile.py.

Constructor & Destructor Documentation

def eventstfile.Events.__init__	(		self,
			filename,
			treename,
			options = None
	)

Definition at line 9 of file eventstfile.py.

    def __init__(self, filename, treename, options=None):
        self.file = TFile(filename)
        if self.file.IsZombie():
            raise ValueError('file {fnam} does not exist'.format(fnam=filename))
        self.tree = self.file.Get(treename)
        if self.tree == None: # is None would not work
            raise ValueError('tree {tree} does not exist in file {fnam}'.format(
                tree = treename,
                fnam = filename
                ))

Member Function Documentation

def eventstfile.Events.__iter__

(

self

)

Definition at line 28 of file eventstfile.py.

References SimpleTreeProducer.SimpleTreeProducer.tree, eventstfile.Events.tree, CSCTFanalyzer.tree, CSCTFAnalyzer.tree, core.TreeAnalyzerNumpy.TreeAnalyzerNumpy.tree, TreeWriterForEcalCorrection.tree, TkOfflineVariables.tree, AlignmentIORootBase.tree, IsolatedParticlesGeneratedJets.tree, EcalPerEvtMatacqAnalyzer.tree, EcalMatacqAnalyzer.tree, IsoTrackCalibration.tree, IsoTrackCalib.tree, IsolatedGenParticles.tree, IsolatedTracksHcalScale.tree, and IsolatedTracksNxN.tree.

    def __iter__(self):
        return iter(self.tree)

def eventstfile.Events.size

(

self

)

Definition at line 20 of file eventstfile.py.

Referenced by ntupleDataFormat._Collection.__iter__(), and ntupleDataFormat._Collection.__len__().

    def size(self):
        return self.tree.GetEntries()

def eventstfile.Events.to	(		self,
			iEv
	)

navigate to event iEv.

Definition at line 23 of file eventstfile.py.

References SimpleTreeProducer.SimpleTreeProducer.tree, eventstfile.Events.tree, CSCTFanalyzer.tree, CSCTFAnalyzer.tree, core.TreeAnalyzerNumpy.TreeAnalyzerNumpy.tree, TreeWriterForEcalCorrection.tree, TkOfflineVariables.tree, AlignmentIORootBase.tree, IsolatedParticlesGeneratedJets.tree, EcalPerEvtMatacqAnalyzer.tree, EcalMatacqAnalyzer.tree, IsoTrackCalibration.tree, IsoTrackCalib.tree, IsolatedGenParticles.tree, IsolatedTracksHcalScale.tree, and IsolatedTracksNxN.tree.

    def to(self, iEv):
        '''navigate to event iEv.'''
        self.tree.GetEntry(iEv)
        return self.tree

Member Data Documentation

eventstfile.Events.file

Definition at line 10 of file eventstfile.py.

eventstfile.Events.tree

Definition at line 13 of file eventstfile.py.

Referenced by eventstfile.Events.__iter__(), svgfig.SVG.__str__(), ZJetsTreeAnalyzer.ZJetsTreeAnalyzer.beginLoop(), MetTreeProducer.MetTreeProducer.declareVariables(), core.AutoFillTreeProducer.AutoFillTreeProducer.declareVariables(), core.AutoFillTreeProducer.AutoFillTreeProducer.fillTree(), ZJetsTreeAnalyzer.ZJetsTreeAnalyzer.process(), MetTreeProducer.MetTreeProducer.process(), python.cmstools.EventTree.SetAlias(), and eventstfile.Events.to().

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