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New code to remove unwanted histograms from root file #295

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219 changes: 219 additions & 0 deletions ShapeAnalysis/scripts/mkFolletto.py
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#!/usr/bin/env python

###
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### | _ \ | | _ \ __| __| _ \
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### | | | ( | \ \ \ / | ( | | __/ | | | ( | \ \ / __/ | | | | | | | ( | \__ \ __| ( | | ( ( | | | | | | | | | __/ | ( | \ \ \ / ( | | <
### _| |_| \___/ \_/\_/ \__| \___/ _| \___| _| _| _| \___/ \_/ \___| \__| _| |_| _| _| _| \__, | ____/ _| \___/ _| \___| \___/ _| _| _| _.__/ _| _| _| \___| \__| \___/ \_/\_/ \___/ _| _|\_\
### |___/
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import json
import sys
import ROOT
import optparse
import LatinoAnalysis.Gardener.hwwtools as hwwtools
import logging
import os.path


# Common Tools & batch
from LatinoAnalysis.Tools.commonTools import *



# ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----


class FollettoFactory:
_logger = logging.getLogger('FollettoFactory')

# _____________________________________________________________________________
def __init__(self):

nuisances = {}
self._nuisances = nuisances

variables = {}
self._variables = variables

variables = {}
self._variables = variables

cuts = {}
self._cuts = cuts

samples = {}
self._samples = samples

def mkFolletto (self, outputDirDatacard, variables, cuts, samples, nuisances) :

self._nuisances = nuisances
self._variables = variables
self._samples = samples
self._cuts = cuts

self._outputDirDatacard = outputDirDatacard


# loop over cuts
for cutName in self._cuts :
print "cut = ", cutName #, " :: ", cuts[cutName]

# loop over variables
for variableName, variable in self._variables.iteritems():
print "variable = ", variableName #, " :: ", variable

tagNameToAppearInDatacard = cutName

# copy the default root file for bookkeeping
old_root_file_name = self._outputDirDatacard + "/" + cutName + "/" + variableName + "/shapes/" + "old_unpruned_histos_" + tagNameToAppearInDatacard + ".root"
new_root_file_name = self._outputDirDatacard + "/" + cutName + "/" + variableName + "/shapes/" + "histos_" + tagNameToAppearInDatacard + ".root"
print " old_unpruned_root_file_name = ", old_root_file_name
print " new_root_file_name = ", new_root_file_name

os.system ("cp " + new_root_file_name + " " + old_root_file_name )

rootFile = ROOT.TFile.Open( old_root_file_name, "READ")
rootFileNew = ROOT.TFile.Open( new_root_file_name, "RECREATE")

# get the histograms
histograms = {}
for k in rootFile.GetListOfKeys():
h = k.ReadObj()
# only 1d histograms supported
histoName = h.GetName()
match = re.search("histo_", histoName)
if not match:
continue
histograms[h.GetName()] = h


# loop over samples
for sampleName, sample in self._samples.iteritems():

# loop over nuisances
for nuisanceName, nuisance in nuisances.iteritems():

if 'name' in nuisance.keys() :
nameTempUp = 'histo_' + str(sampleName) + '_CMS_' + (nuisance['name']) + 'Up'
nameTempDown = 'histo_' + str(sampleName) + '_CMS_' + (nuisance['name']) + 'Down'
nameTemp = 'histo_' + str(sampleName)

#print " nameTempUp = ", nameTempUp

if nameTempUp in histograms.keys() and nameTempDown in histograms.keys() :


histo_nominal = histograms[nameTemp]
histo_up = histograms[nameTempUp]
histo_down = histograms[nameTempDown]

if 'AsLnN' in nuisance and float(nuisance['AsLnN']) >= 1.:
print ">>>>>", nuisance['name'], " was derived as a shape uncertainty but is being treated as a lnN, thus root file to be renamed not to be used"
histo_up. SetName('backup_nameTempUp' + nameTempUp)
histo_down.SetName('backup_nameTempDown'+ nameTempDown)

histo_up.Write()
histo_down.Write()

# save all the histograms with different structure,
# as the bbb histograms and the stats

for histoName, histo in histograms.iteritems() :
match = re.search("_stat", histoName)
if match:
h.Write()

# finally save the nominals
if sampleName != "DATA" :
nameTemp = "histo_" + str(sampleName)
histo_nominal = histograms[nameTemp]
histo_nominal.Write()
else :
nameTemp = "histo_Data"
histo_nominal = histograms[nameTemp]
histo_nominal.Write()





######################################


if __name__ == '__main__':
print '''
--------------------------------------------------------------------------------------------------

____| | | | |
| _ \ | | _ \ __| __| _ \
__| ( | | | __/ | | ( |
_| \___/ _| _| \___| \__| \__| \___/

--------------------------------------------------------------------------------------------------
'''

usage = 'usage: %prog [options]'
parser = optparse.OptionParser(usage)

parser.add_option('--outputDirDatacard' , dest='outputDirDatacard' , help='output directory' , default='./')
parser.add_option('--nuisancesFile' , dest='nuisancesFile' , help='file with nuisances configurations' , default=None )

# read default parsing options as well
hwwtools.addOptions(parser)
hwwtools.loadOptDefaults(parser)
(opt, args) = parser.parse_args()

print "opt.pycfg = ", opt.pycfg
print "opt.outputDirDatacard = ", opt.outputDirDatacard
print "opt.nuisancesFile = ", opt.nuisancesFile
print "opt.cardList = ", opt.cardList



factory = ChainSawFactory()

# ~~~~
samples = {}
if os.path.exists(opt.samplesFile) :
handle = open(opt.samplesFile,'r')
exec(handle)
handle.close()

variables = {}
if os.path.exists(opt.variablesFile) :
handle = open(opt.variablesFile,'r')
exec(handle)
handle.close()

cuts = {}
if os.path.exists(opt.cutsFile) :
handle = open(opt.cutsFile,'r')
exec(handle)
handle.close()

nuisances = {}
if opt.nuisancesFile == None :
print " Please provide the nuisances structure if you want to add nuisances "

if os.path.exists(opt.nuisancesFile) :
handle = open(opt.nuisancesFile,'r')
exec(handle)
handle.close()


factory.mkFolletto( opt.outputDirDatacard, variables, cuts, samples, nuisances)