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import ROOT
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from ROOT import TFile
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from printcolor import printc
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def copytree(pathIN,pathOUT,prefix,newprefix,file,Aprefix,Acut):
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print "##### COPY TREE - BEGIN ######"
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print "Input File : %s/%s%s.root " %(pathIN,prefix,file)
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print "Output File : %s/%s%s%s.root" %(pathOUT,newprefix,Aprefix,file)
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input = TFile.Open("%s/%s%s.root" %(pathIN,prefix,file),'read')
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output = TFile.Open("%s/%s%s%s.root" %(pathOUT,newprefix,Aprefix,file),'recreate')
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input.cd()
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obj = ROOT.TObject
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for key in ROOT.gDirectory.GetListOfKeys():
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input.cd()
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obj = key.ReadObj()
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#print obj.GetName()
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if obj.GetName() == 'tree':
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continue
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output.cd()
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#print key.GetName()
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obj.Write(key.GetName())
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inputTree = input.Get("tree")
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nEntries = inputTree.GetEntries()
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output.cd()
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print '\n\t copy file: %s with cut: %s' %(file,Acut)
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outputTree = inputTree.CopyTree(Acut)
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kEntries = outputTree.GetEntries()
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printc('blue','',"\t before cuts\t %s" %nEntries)
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printc('green','',"\t survived\t %s" %kEntries)
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#print "\t Factor for Scaling is %s" %factor
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outputTree.AutoSave()
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output.ls()
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#Count.Scale(factor)
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#CountWithPU.Scale(factor)
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#CountWithPU2011B.Scale(factor)
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print "Writing output file"
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output.Write()
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print "Closing output file"
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output.Close()
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print "Closing input file"
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input.Close()
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print "##### COPY TREE - END ######"
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