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jpata |
1.1 |
import ROOT
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from DataFormats.FWLite import Events, Handle
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import sys
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#Load PyTables
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from tables import *
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#Define the event database row
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class Event(IsDescription):
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eventId = Int32Col()
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runId = Int32Col()
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lumiId = Int32Col()
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nTightLeptons = Int32Col()
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leptonFlavour = Int32Col()
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leptonEta = Float32Col()
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jetPt0 = Float32Col()
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#Create the database file
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h5file = openFile("tutorial1.h5", mode = "w", title = "Test file")
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#Create table in the database
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table = h5file.createTable("/", "EventTable", Event)
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#Get a handle to the row
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event_row = table.row
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ROOT.gROOT.SetBatch() # don't pop up canvases
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#Define the input file
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input_file = "~/singletop/sync_T_t_ntuple.root"
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#Get the Event generator from the event file
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events = Events(input_file)
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# create handle outside of loop
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handle = Handle ("vector<float>")
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muEtaLabel = ("nTupleMuons", "tightMuonsEta", "SingleTop")
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eleEtaLabel = ("nTupleElectrons", "tightElectronsEta", "SingleTop")
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jetPtLabel = ("nTupleTopJetsPF", "topJetsPFPt", "SingleTop")
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events.toBegin()
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# loop over event
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for event in events:
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#Get the event contents
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event.getByLabel (muEtaLabel, handle)
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muEtas = handle.product()
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event.getByLabel (eleEtaLabel, handle)
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eleEtas = handle.product()
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event.getByLabel (jetPtLabel, handle)
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jetPts = handle.product()
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#Convert the std::vector to python list
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jetPts = [x for x in jetPts]
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#Get the first 1 jet PT-s
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i = 0
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for jetPt in jetPts[0:1]:
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event_row["jetPt%d" % i] = jetPt
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i += 1
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nMu = len(muEtas)
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nEle = len(eleEtas)
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nTightLeptons = nMu + nEle
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event_row["nTightLeptons"] = nTightLeptons
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if nTightLeptons != 1:
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leptonEta = float("nan")
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leptonFlavour = 0
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elif nEle==1:
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leptonEta = eleEtas[0]
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leptonFlavour = 1
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elif nMu==1:
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leptonEta = muEtas[0]
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leptonFlavour = 2
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#for val in vals:
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# print val
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#for mu in muons:
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# print mu.userFloat("pt")
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eventId = event.object().id().event()
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lumiId = event.object().id().luminosityBlock()
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runId = event.object().id().run()
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event_row["eventId"] = eventId
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event_row["runId"] = runId
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event_row["lumiId"] = lumiId
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event_row["leptonEta"] = leptonEta
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event_row["leptonFlavour"] = leptonFlavour
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#Put the event row into the table
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event_row.append()
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#print "%d:%d:%d" % (runId, lumiId, eventId)
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#FLush the table from memory to disk
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table.flush()
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#Print out some debugging events
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evs = [(x["eventId"], x["leptonEta"], x["leptonFlavour"], x["jetPt0"]) for x in table.where("(eventId >= 7802) & (eventId <= 7900) & (nTightLeptons==1)")]
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for ev in evs:
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print ev
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