def plotStackedHistos(histosPerGroup={}, outputDir='', region='', verbose=False):
groups = histosPerGroup.keys()
variables = first(histosPerGroup).keys()
leptonTypes = first(first(histosPerGroup)).keys()
colors = SampleUtils.colors
mkdirIfNeeded(outputDir)
histosPerName = dict([(region+'_'+var+'_'+lt, # one canvas for each histo, so key with histoname w/out group
dict([(g, histosPerGroup[g][var][lt]) for g in groups]))
for var in variables for lt in leptonTypes])
for histoname, histosPerGroup in histosPerName.iteritems():
missingGroups = [g for g, h in histosPerGroup.iteritems() if not h]
if missingGroups:
if verbose : print "skip %s, missing histos for %s"%(histoname, str(missingGroups))
continue
bkgHistos = dict([(g, h) for g, h in histosPerGroup.iteritems() if isBkgSample(g)])
totBkg = summedHisto(bkgHistos.values())
err_band = buildErrBandGraph(totBkg, computeStatErr2(totBkg))
emptyBkg = totBkg.Integral()==0
if emptyBkg:
if verbose : print "empty backgrounds, skip %s"%histoname
continue
can = r.TCanvas('c_'+histoname, histoname, 800, 600)
can.cd()
pm = totBkg # pad master
pm.SetStats(False)
pm.Draw('axis')
can.Update() # necessary to fool root's dumb object ownership
stack = r.THStack('stack_'+histoname,'')
can.Update()
r.SetOwnership(stack, False)
for s, h in bkgHistos.iteritems() :
h.SetFillColor(colors[s] if s in colors else r.kOrange)
h.SetDrawOption('bar')
h.SetDirectory(0)
stack.Add(h)
stack.Draw('hist same')
err_band.Draw('E2 same')
data = histosPerGroup['data']
if data and data.GetEntries():
data.SetMarkerStyle(r.kFullDotLarge)
data.Draw('p same')
yMin, yMax = getMinMax([h for h in [totBkg, data, err_band] if h])
pm.SetMinimum(0.0)
pm.SetMaximum(1.1*yMax)
can.Update()
topRightLabel(can, histoname, xpos=0.125, align=13)
drawLegendWithDictKeys(can, dictSum(bkgHistos, {'stat err':err_band}), opt='f')
can.RedrawAxis()
can._stack = stack
can._histos = [h for h in stack.GetHists()]+[data]
can.Update()
outFname = os.path.join(outputDir, histoname+'.png')
utils.rmIfExists(outFname)
can.SaveAs(outFname)
allSamples += ['totbkg'] if printTotBkg else []
allSelects = sorted(list(set([k.pr for k in histosByType.keys()])))
if verbose : print 'allSamples : ',allSamples
if verbose : print 'allSelects : ',allSelects
# get the counts (adding up what needs to be merged by samplename)
sampleCountsPerSel = dict() # counts[sample][sel]
countsSampleSel = dict([(s, collections.defaultdict(float)) for s in allSamples])
for t, histos in refHistos.iteritems() :
if t.ch != channel : continue
for h in histos :
sample, sel = h.sample, h.type.pr
cnt = h.GetEntries() if rawcnt else h.Integral()
skipIt = not printData and sample=='data'
countIt = not skipIt
countsSampleSel[sample][sel] += cnt if countIt else 0.0
if printTotBkg and isBkgSample(sample) :
countsSampleSel['totbkg'][sel] += cnt
ct = CutflowTable(allSamples, allSelects, countsSampleSel,
isRawCount=rawcnt, selectionRegexp=selRegexp)
csv = ct.csv()
print csv
if csvFile :
with open(csvFile, 'w') as f : f.write(csv)
if texFile :
with open(texFile, 'w') as f : f.write(ct.latex())
if pklFile :
dumpToPickle(pklFile, countsSampleSel)
def subtractRealAndComputeScaleFactor(histosPerGroup={}, variable='', outRatiohistoname='',outDataeffhistoname='',
outputDir='./', region='', verbose=False):
"efficiency scale factor"
groups = histosPerGroup.keys()
mkdirIfNeeded(outputDir)
histosPerType = dict([(lt,
dict([(g,
histosPerGroup[g][variable][lt])
for g in groups]))
for lt in leptonTypes])
for lt in leptonTypes :
histosPerType[lt]['totSimBkg'] = summedHisto([histo for group,histo in histosPerType[lt].iteritems() if isBkgSample(group)])
simuTight = histosPerType['fake_tight']['totSimBkg']
simuLoose = histosPerType['fake_loose']['totSimBkg']
dataTight = histosPerType['tight' ]['data' ]
dataLoose = histosPerType['loose' ]['data' ]
# subtract real contribution from data
# _Note to self_: currently estimating the real contr from MC; in
# the past also used iterative corr, which might be more
# appropriate in cases like here, where the normalization is
# so-so. Todo: investigate the normalization.
dataTight.Add(histosPerType['real_tight']['totSimBkg'], -1.0)
dataLoose.Add(histosPerType['real_loose']['totSimBkg'], -1.0)
dataTight.Divide(dataLoose)
simuTight.Divide(simuLoose)
print "eff(T|L) vs. ",variable
def formatFloat(floats): return ["%.4f"%f for f in floats]
print "efficiency data : ",formatFloat(getBinContents(dataTight))
print "efficiency simu : ",formatFloat(getBinContents(simuTight))
ratio = dataTight.Clone(outRatiohistoname)
ratio.SetDirectory(0)
ratio.Divide(simuTight)
print "sf data/simu : ",formatFloat(getBinContents(ratio))
print " +/- : ",formatFloat(getBinErrors(ratio))
can = r.TCanvas('c_'+outRatiohistoname, outRatiohistoname, 800, 600)
botPad, topPad = rootUtils.buildBotTopPads(can)
can.cd()
topPad.Draw()
topPad.cd()
pm = dataTight
pm.SetStats(0)
pm.Draw('axis')
xAx, yAx = pm.GetXaxis(), pm.GetYaxis()
xAx.SetTitle('')
xAx.SetLabelSize(0)
yAx.SetRangeUser(0.0, 0.25)
textScaleUp = 1.0/topPad.GetHNDC()
yAx.SetLabelSize(textScaleUp*0.04)
yAx.SetTitleSize(textScaleUp*0.04)
yAx.SetTitle('#epsilon(T|L)')
yAx.SetTitleOffset(yAx.GetTitleOffset()/textScaleUp)
simuTight.SetLineColor(r.kRed)
simuTight.SetMarkerStyle(r.kOpenCross)
simuTight.SetMarkerColor(simuTight.GetLineColor())
dataTight.Draw('same')
simuTight.Draw('same')
leg = drawLegendWithDictKeys(topPad, {'data':dataTight, 'simulation':simuTight}, legWidth=0.4)
leg.SetHeader('scale factor '+region+' '+('electron' if '_el_'in outRatiohistoname else
'muon' if '_mu_' in outRatiohistoname else ''))
can.cd()
botPad.Draw()
botPad.cd()
ratio.SetStats(0)
ratio.Draw()
textScaleUp = 1.0/botPad.GetHNDC()
xAx, yAx = ratio.GetXaxis(), ratio.GetYaxis()
yAx.SetRangeUser(0.0, 2.0)
xAx.SetTitle({'pt1':'p_{T}', 'eta1':'|#eta|'}[variable])
yAx.SetNdivisions(-202)
yAx.SetTitle('Data/Sim')
yAx.CenterTitle()
xAx.SetLabelSize(textScaleUp*0.04)
xAx.SetTitleSize(textScaleUp*0.04)
yAx.SetLabelSize(textScaleUp*0.04)
yAx.SetTitleSize(textScaleUp*0.04)
refLine = rootUtils.referenceLine(xAx.GetXmin(), xAx.GetXmax())
refLine.Draw()
can.Update()
outFname = os.path.join(outputDir, region+'_'+outRatiohistoname)
for ext in ['.eps','.png']:
utils.rmIfExists(outFname+ext)
can.SaveAs(outFname+ext)
eff_data = dataTight.Clone(outDataeffhistoname)
return {outRatiohistoname : ratio, outDataeffhistoname : eff_data}