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File indexing completed on 2024-04-06 12:23:29

0001 from PhysicsTools.HeppyCore.framework.analyzer import Analyzer
0002 from ROOT import TH1F
0003 
0004 class Histogrammer(Analyzer):
0005 
0006     def beginLoop(self, setup):
0007         super(Histogrammer, self).beginLoop(setup)
0008         servname = '_'.join(['PhysicsTools.HeppyCore.framework.services.tfile.TFileService',
0009                              self.cfg_ana.file_label
0010                          ]) 
0011         tfileservice = setup.services[servname]
0012         tfileservice.file.cd()
0013         self.hist = TH1F("hist", "an histogram", 200, 0, 200)
0014         
0015     def process(self, event):
0016         self.hist.Fill(event.iEv)
0017