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, HIPTwoBodyDecayAnalyzer.tree, EcalPerEvtMatacqAnalyzer.tree, EcalMatacqAnalyzer.tree, IsoTrackCalibration.tree, and IsoTrackCalib.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, HIPTwoBodyDecayAnalyzer.tree, EcalPerEvtMatacqAnalyzer.tree, EcalMatacqAnalyzer.tree, IsoTrackCalibration.tree, and IsoTrackCalib.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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