ntupleDataFormat.TrackingNtuple Class Reference

Inheritance diagram for ntupleDataFormat.TrackingNtuple:

Public Member Functions
def	__init__ (self, fileName, tree="trackingNtuple/tree")
def	__iter__ (self)
def	file (self)
def	getEvent (self, index)
def	hasHits (self)
def	hasSeeds (self)
def	nevents (self)
def	tree (self)

Private Attributes
	_entries
	_file
	_tree

Detailed Description

Class abstracting the whole ntuple/TTree.

Main benefit is to provide nice interface for
- iterating over events
- querying whether hit/seed information exists

Note that to iteratate over the evets with zip(), you should use
itertools.izip() instead.

Definition at line 352 of file ntupleDataFormat.py.

Constructor & Destructor Documentation

def ntupleDataFormat.TrackingNtuple.__init__	(		self,
			fileName,
			tree = "trackingNtuple/tree"
	)

Constructor.

Arguments:
fileName -- String for path to the ROOT file
tree     -- Name of the TTree object inside the ROOT file (default: 'trackingNtuple/tree')

Definition at line 362 of file ntupleDataFormat.py.

    def __init__(self, fileName, tree="trackingNtuple/tree"):
        """Constructor.

        Arguments:
        fileName -- String for path to the ROOT file
        tree     -- Name of the TTree object inside the ROOT file (default: 'trackingNtuple/tree')
        """
        super(TrackingNtuple, self).__init__()
        self._file = ROOT.TFile.Open(fileName)
        self._tree = self._file.Get(tree)
        self._entries = self._tree.GetEntriesFast()

Member Function Documentation

def ntupleDataFormat.TrackingNtuple.__iter__

(

self

)

Returns generator for iterating over TTree entries (events)

Generator returns Event objects.

Definition at line 391 of file ntupleDataFormat.py.

References ntupleDataFormat.TrackingNtuple._entries, ntupleDataFormat._Collection._tree, ntupleDataFormat._Object._tree, python.cmstools.EventTree._tree, and ntupleDataFormat.TrackingNtuple._tree.

    def __iter__(self):
        """Returns generator for iterating over TTree entries (events)

        Generator returns Event objects.

        """
        for jentry in xrange(self._entries):
            # get the next tree in the chain and verify
            ientry = self._tree.LoadTree( jentry )
            if ientry < 0: break
            # copy next entry into memory and verify
            nb = self._tree.GetEntry( jentry )
            if nb <= 0: continue

            yield Event(self._tree, jentry)

def ntupleDataFormat.TrackingNtuple.file

(

self

)

Definition at line 374 of file ntupleDataFormat.py.

References Vispa.Plugins.ConfigEditor.ConfigDataAccessor.ConfigDataAccessor._file, CommonAnalyzer._file, dqm-mbProfile.Profile._file, and ntupleDataFormat.TrackingNtuple._file.

    def file(self):
        return self._file

def ntupleDataFormat.TrackingNtuple.getEvent	(		self,
			index
	)

Returns Event for a given index

Definition at line 407 of file ntupleDataFormat.py.

References ntupleDataFormat._Collection._tree, ntupleDataFormat._Object._tree, python.cmstools.EventTree._tree, and ntupleDataFormat.TrackingNtuple._tree.

    def getEvent(self, index):
        """Returns Event for a given index"""
        ientry = self._tree.LoadTree(index)
        if ientry < 0: return None
        nb = self._tree.GetEntry(ientry) # ientry or jentry?
        if nb <= 0: None

        return Event(self._tree, ientry) # ientry of jentry?

def ntupleDataFormat.TrackingNtuple.hasHits

(

self

)

Returns true if the ntuple has hit information.

Definition at line 383 of file ntupleDataFormat.py.

References ntupleDataFormat._Collection._tree, ntupleDataFormat._Object._tree, python.cmstools.EventTree._tree, and ntupleDataFormat.TrackingNtuple._tree.

    def hasHits(self):
        """Returns true if the ntuple has hit information."""
        return hasattr(self._tree, "pix_isBarrel")

def ntupleDataFormat.TrackingNtuple.hasSeeds

(

self

)

Returns true if the ntuple has seed information.

Definition at line 387 of file ntupleDataFormat.py.

References ntupleDataFormat._Collection._tree, ntupleDataFormat._Object._tree, python.cmstools.EventTree._tree, and ntupleDataFormat.TrackingNtuple._tree.

    def hasSeeds(self):
        """Returns true if the ntuple has seed information."""
        return hasattr(self._tree, "see_fitok")

def ntupleDataFormat.TrackingNtuple.nevents

(

self

)

Definition at line 380 of file ntupleDataFormat.py.

References ntupleDataFormat.TrackingNtuple._entries.

    def nevents(self):
        return self._entries

def ntupleDataFormat.TrackingNtuple.tree

(

self

)

Definition at line 377 of file ntupleDataFormat.py.

References ntupleDataFormat._Collection._tree, ntupleDataFormat._Object._tree, python.cmstools.EventTree._tree, and ntupleDataFormat.TrackingNtuple._tree.

Referenced by ZJetsTreeAnalyzer.ZJetsTreeAnalyzer.beginLoop(), MetTreeProducer.MetTreeProducer.declareVariables(), core.AutoFillTreeProducer.AutoFillTreeProducer.declareVariables(), core.AutoFillTreeProducer.AutoFillTreeProducer.fillTree(), ZJetsTreeAnalyzer.ZJetsTreeAnalyzer.process(), and MetTreeProducer.MetTreeProducer.process().

    def tree(self):
        return self._tree

Member Data Documentation

ntupleDataFormat.TrackingNtuple._entries

private

Definition at line 372 of file ntupleDataFormat.py.

Referenced by ntupleDataFormat.TrackingNtuple.__iter__(), and ntupleDataFormat.TrackingNtuple.nevents().

ntupleDataFormat.TrackingNtuple._file

private

Definition at line 370 of file ntupleDataFormat.py.

Referenced by ntupleDataFormat.TrackingNtuple.file().

ntupleDataFormat.TrackingNtuple._tree

private

Definition at line 371 of file ntupleDataFormat.py.

Referenced by ntupleDataFormat.BeamSpot.__getattr__(), ntupleDataFormat.TrackingNtuple.__iter__(), ntupleDataFormat._SimHitMatchAdaptor._nMatchedSimHits(), ntupleDataFormat._TrackingParticleMatchAdaptor._nMatchedTrackingParticles(), ntupleDataFormat.Event.beamspot(), ntupleDataFormat._TrackingParticleMatchAdaptor.bestMatchingTrackingParticle(), ntupleDataFormat._DetIdStrAdaptor.detIdStr(), ntupleDataFormat.TrackingNtuple.getEvent(), ntupleDataFormat._RecoHitAdaptor.gluedHits(), ntupleDataFormat.Event.gluedHits(), ntupleDataFormat.TrackingNtuple.hasHits(), ntupleDataFormat.TrackingNtuple.hasSeeds(), ntupleDataFormat._RecoHitAdaptor.hits(), ntupleDataFormat._RecoHitAdaptor.invalidHits(), ntupleDataFormat._DetIdStrAdaptor.layerStr(), ntupleDataFormat._SimHitMatchAdaptor.matchedSimHitInfos(), ntupleDataFormat._TrackingParticleMatchAdaptor.matchedTrackingParticleInfos(), ntupleDataFormat._RecoHitAdaptor.phase2OTHits(), ntupleDataFormat.Event.phase2OTHits(), ntupleDataFormat._RecoHitAdaptor.pixelHits(), ntupleDataFormat.Event.pixelHits(), ntupleDataFormat.Event.seeds(), ntupleDataFormat._RecoHitAdaptor.stripHits(), ntupleDataFormat.Event.stripHits(), ntupleDataFormat.Event.trackingParticles(), ntupleDataFormat.Event.trackingVertices(), ntupleDataFormat.Event.tracks(), ntupleDataFormat.TrackingNtuple.tree(), and ntupleDataFormat.Event.vertices().