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ComputeEffAccDs_MLHEP.py
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ComputeEffAccDs_MLHEP.py
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'''
python script for the computation of the Ds+ efficiency times acceptance from MLHEP output
run: python ComputeEffAccDs_ML.py fitConfigFileName.yml inputFileName.root outFileName.root
'''
import array
import math
import argparse
import yaml
from ROOT import TFile, TCanvas, TH1F, TLegend # pylint: disable=import-error,no-name-in-module
from ROOT import gROOT, kRed, kBlue, kFullCircle, kOpenSquare # pylint: disable=import-error,no-name-in-module
from utils.StyleFormatter import SetGlobalStyle, SetObjectStyle
def ComputeEfficiency(recoCounts, genCounts, recoCountsError, genCountsError):
'''
Method for efficiency computation
'''
hTmpNum = TH1F('hTmpNum', '', 1, 0, 1)
hTmpDen = TH1F('hTmpDen', '', 1, 0, 1)
hTmpNum.SetBinContent(1, recoCounts)
hTmpDen.SetBinContent(1, genCounts)
hTmpNum.SetBinError(1, recoCountsError)
hTmpDen.SetBinError(1, genCountsError)
hTmpNum.Divide(hTmpNum, hTmpDen, 1., 1, 'B')
return hTmpNum.GetBinContent(1), hTmpNum.GetBinError(1)
parser = argparse.ArgumentParser(description='Arguments')
parser.add_argument('fitConfigFileName', metavar='text',
default='config_Ds_Fit.yml')
parser.add_argument('centClass', metavar='text', default='')
parser.add_argument('inFileName', metavar='text', default='')
parser.add_argument('outFileName', metavar='text', default='')
parser.add_argument('--ptweights', metavar=('text', 'text'), nargs=2, required=False,
help='First path of the pT weights file, second name of the pT weights histogram')
parser.add_argument("--batch", help="suppress video output",
action="store_true")
args = parser.parse_args()
with open(args.fitConfigFileName, 'r') as ymlfitConfigFile:
fitConfig = yaml.load(ymlfitConfigFile)
cent = ''
if args.centClass == 'k010':
cent = 'Cent010'
elif args.centClass == 'k3050':
cent = 'Cent3050'
gROOT.SetBatch(args.batch)
SetGlobalStyle(padleftmargin=0.14, titlesize=0.045, labelsize=0.04)
PtMin = fitConfig[cent]['PtMin']
PtMax = fitConfig[cent]['PtMax']
PtLims = list(PtMin)
nPtBins = len(PtMin)
PtLims.append(PtMax[nPtBins - 1])
hEffPrompt = TH1F(
'hEffPrompt', ';#it{p}_{T} (GeV/#it{c});(Acc #times #epsilon);', nPtBins, array.array('f', PtLims))
hEffFD = TH1F('hEffFD', ';#it{p}_{T} (GeV/#it{c});(Acc #times #epsilon);',
nPtBins, array.array('f', PtLims))
hYieldPromptGen = TH1F(
'hYieldPromptGen', ';#it{p}_{T} (GeV/#it{c}); # Generated MC', nPtBins, array.array('f', PtLims))
hYieldFDGen = TH1F(
'hYieldFDGen', ';#it{p}_{T} (GeV/#it{c}); # Generated MC', nPtBins, array.array('f', PtLims))
hYieldPromptReco = TH1F(
'hYieldPromptReco', ';#it{p}_{T} (GeV/#it{c}); # Reco MC', nPtBins, array.array('f', PtLims))
hYieldFDReco = TH1F(
'hYieldFDReco', ';#it{p}_{T} (GeV/#it{c}); # Reco MC', nPtBins, array.array('f', PtLims))
SetObjectStyle(hEffPrompt, color=kRed, markerstyle=kFullCircle)
SetObjectStyle(hEffFD, color=kBlue, markerstyle=kOpenSquare, markersize=1.5, linestyle=7)
SetObjectStyle(hYieldPromptGen, color=kRed, markerstyle=kFullCircle)
SetObjectStyle(hYieldFDGen, color=kBlue, markerstyle=kOpenSquare, markersize=1.5, linestyle=7)
SetObjectStyle(hYieldPromptReco, color=kRed, markerstyle=kFullCircle)
SetObjectStyle(hYieldFDReco, color=kBlue, markerstyle=kOpenSquare, markersize=1.5, linestyle=7)
if args.ptweights:
infileWeigts = TFile.Open(args.ptweights[0])
hPtWeights = infileWeigts.Get(args.ptweights[1])
hRecoPrompt, hRecoFD, hGenPrompt, hGenFD = ([] for iHisto in range(4))
infile = TFile(args.inFileName)
for iPt in range(len(PtMin)):
hRecoPrompt.append(infile.Get('h_sel_pr'))
hRecoFD.append(infile.Get('h_sel_fd'))
hGenPrompt.append(infile.Get('h_gen_pr'))
hGenFD.append(infile.Get('h_gen_fd'))
# get unweighted yields (for uncertainty)
nRecoPrompt = hRecoPrompt[iPt].Integral()
nGenPrompt = hGenPrompt[iPt].Integral()
nRecoFD = hRecoFD[iPt].Integral()
nGenFD = hGenFD[iPt].Integral()
# get weighted yields
nRecoPromptWeighted, nGenPromptWeighted, nRecoFDWeighted, nGenFDWeighted = (0 for i in range(4))
for iBin in range(hRecoPrompt[iPt].GetNbinsX()):
if args.ptweights:
binweigths = hPtWeights.GetXaxis().FindBin(hRecoPrompt[iPt].GetBinCenter(iBin+1))
weight = hPtWeights.GetBinContent(binweigths)
else:
weight = 1
nRecoPromptWeighted += weight*hRecoPrompt[iPt].GetBinContent(iBin+1)
nGenPromptWeighted += weight*hGenPrompt[iPt].GetBinContent(iBin+1)
nRecoFDWeighted += weight*hRecoFD[iPt].GetBinContent(iBin+1)
nGenFDWeighted += weight*hGenFD[iPt].GetBinContent(iBin+1)
effPrompt, effPromptUnc = ComputeEfficiency(nRecoPromptWeighted, nGenPromptWeighted, \
nRecoPromptWeighted/math.sqrt(nRecoPrompt), nGenPromptWeighted/math.sqrt(nGenPrompt))
effFD, effFDUnc = ComputeEfficiency(nRecoFDWeighted, nGenFDWeighted, \
nRecoFDWeighted/math.sqrt(nRecoFD), nGenFDWeighted/math.sqrt(nGenFD))
hEffPrompt.SetBinContent(iPt+1, effPrompt)
hEffPrompt.SetBinError(iPt+1, effPromptUnc)
hEffFD.SetBinContent(iPt+1, effFD)
hEffFD.SetBinError(iPt+1, effFDUnc)
hYieldPromptGen.SetBinContent(iPt+1, nGenPromptWeighted)
hYieldPromptGen.SetBinError(
iPt+1, nGenPromptWeighted/math.sqrt(nGenPrompt))
hYieldFDGen.SetBinContent(iPt+1, nGenFDWeighted)
hYieldFDGen.SetBinError(iPt+1, nGenFDWeighted/math.sqrt(nGenFD))
hYieldPromptReco.SetBinContent(iPt+1, nRecoPromptWeighted)
hYieldPromptReco.SetBinError(
iPt+1, nRecoPromptWeighted/math.sqrt(nRecoPrompt))
hYieldFDReco.SetBinContent(iPt+1, nRecoFDWeighted)
hYieldFDReco.SetBinError(iPt+1, nRecoFDWeighted/math.sqrt(nRecoFD))
leg = TLegend(0.6, 0.2, 0.8, 0.4)
leg.SetTextSize(0.045)
leg.SetFillStyle(0)
leg.AddEntry(hEffPrompt, "Prompt", "p")
leg.AddEntry(hEffFD, "Feed-down", "p")
hEffPrompt.SetDirectory(0)
hEffFD.SetDirectory(0)
cEff = TCanvas('cEff', '', 800, 800)
cEff.DrawFrame(PtMin[0], 1.e-5, PtMax[nPtBins-1], 1.,
';#it{p}_{T} (GeV/#it{c});(Acc #times #epsilon);')
cEff.SetLogy()
hEffPrompt.Draw('same')
hEffFD.Draw('same')
leg.Draw()
outFile = TFile(args.outFileName, 'recreate')
hEffPrompt.Write()
hEffFD.Write()
hYieldPromptGen.Write()
hYieldFDGen.Write()
hYieldPromptReco.Write()
hYieldFDReco.Write()
outFile.Close()
if not args.batch:
outFileNamePDF = args.outFileName.replace('.root', '.pdf')
cEff.SaveAs(outFileNamePDF)
input('Press enter to exit')