def get_total_stat_sys_hists(hists, sys_dict):
"""
first make total hist for each systematic.
then sum deviations in quadrature bin-by-bin to make band.
"""
## make total sys hists
h_total = histutils.add_hists(hists)
h_total_stat = make_stat_hist(h_total)
sys_hists_total = {}
for sys in sys_dict.values():
hists_up = []
hists_dn = []
for h in hists:
## if hist not found, take nominal
if not h.sys_hists.has_key(sys):
hists_up.append(h)
hists_dn.append(h)
else:
hists_up.append(h.sys_hists[sys][0] or h)
hists_dn.append(h.sys_hists[sys][0] or h)
h_up = histutils.add_hists(hists_up)
h_dn = histutils.add_hists(hists_dn)
sys_hists_total[sys] = (h_up, h_dn)
## sum bin-by-bin deviations in quadrature
h_sys_UP = h_total.Clone('%s_sys_UP' % (h_total.GetName()))
h_sys_DN = h_total.Clone('%s_sys_DN' % (h_total.GetName()))
h_total_UP = h_total.Clone('%s_total_UP' % (h_total.GetName()))
h_total_DN = h_total.Clone('%s_total_DN' % (h_total.GetName()))
for i in range(1, h_total.GetNbinsX() + 1):
n = h_total.GetBinContent(i)
tot_sys_UP2 = 0.0
tot_sys_DN2 = 0.0
for sys in sys_dict.values():
(h_UP, h_DN) = sys_hists_total[sys]
n_UP = h_UP.GetBinContent(i)
n_DN = h_DN.GetBinContent(i)
v_UP = (n_UP - n) / n if (n_UP != None and n) else 0.0
v_DN = (n_DN - n) / n if (n_DN != None and n) else 0.0
tot_sys_UP2 += pow(v_UP, 2)
tot_sys_DN2 += pow(v_DN, 2)
tot_sys_UP = sqrt(tot_sys_UP2)
tot_sys_DN = sqrt(tot_sys_DN2)
h_sys_UP.SetBinContent(i, tot_sys_UP)
h_sys_DN.SetBinContent(i, tot_sys_DN)
stat = h_total_stat.GetBinContent(i)
tot_UP = sqrt(pow(tot_sys_UP, 2) + pow(stat, 2))
tot_DN = sqrt(pow(tot_sys_DN, 2) + pow(stat, 2))
h_total_UP.SetBinContent(i, tot_UP)
h_total_DN.SetBinContent(i, tot_DN)
return (h_total_stat, h_sys_UP, h_sys_DN, h_total_UP, h_total_DN)
def get_total_stat_sys_hists(hists,sys_dict):
"""
first make total hist for each systematic.
then sum deviations in quadrature bin-by-bin to make band.
"""
## make total sys hists
h_total = histutils.add_hists(hists)
h_total_stat = make_stat_hist(h_total)
sys_hists_total = {}
for sys in sys_dict.values():
hists_up = []
hists_dn = []
for h in hists:
## if hist not found, take nominal
if not h.sys_hists.has_key(sys):
hists_up.append(h)
hists_dn.append(h)
else:
hists_up.append(h.sys_hists[sys][0] or h)
hists_dn.append(h.sys_hists[sys][0] or h)
h_up = histutils.add_hists(hists_up)
h_dn = histutils.add_hists(hists_dn)
sys_hists_total[sys] = (h_up,h_dn)
## sum bin-by-bin deviations in quadrature
h_sys_UP = h_total.Clone('%s_sys_UP'%(h_total.GetName()))
h_sys_DN = h_total.Clone('%s_sys_DN'%(h_total.GetName()))
h_total_UP = h_total.Clone('%s_total_UP'%(h_total.GetName()))
h_total_DN = h_total.Clone('%s_total_DN'%(h_total.GetName()))
for i in range(1,h_total.GetNbinsX()+1):
n = h_total.GetBinContent(i)
tot_sys_UP2 = 0.0
tot_sys_DN2 = 0.0
for sys in sys_dict.values():
(h_UP,h_DN) = sys_hists_total[sys]
n_UP = h_UP.GetBinContent(i)
n_DN = h_DN.GetBinContent(i)
v_UP = (n_UP-n)/n if (n_UP!=None and n) else 0.0
v_DN = (n_DN-n)/n if (n_DN!=None and n) else 0.0
tot_sys_UP2 += pow(v_UP,2)
tot_sys_DN2 += pow(v_DN,2)
tot_sys_UP = sqrt(tot_sys_UP2)
tot_sys_DN = sqrt(tot_sys_DN2)
h_sys_UP.SetBinContent(i,tot_sys_UP)
h_sys_DN.SetBinContent(i,tot_sys_DN)
stat = h_total_stat.GetBinContent(i)
tot_UP = sqrt(pow(tot_sys_UP,2)+pow(stat,2))
tot_DN = sqrt(pow(tot_sys_DN,2)+pow(stat,2))
h_total_UP.SetBinContent(i,tot_UP)
h_total_DN.SetBinContent(i,tot_DN)
return (h_total_stat,h_sys_UP,h_sys_DN,h_total_UP,h_total_DN)
def hist(self, histname=None, region=None, icut=None, sys=None, mode=None):
"""
Supports list of regions to be added
"""
if not self.is_affected_by_systematic(sys): sys = mode = None
htag = self.get_hist_tag(histname, region, icut, sys, mode)
if not isinstance(region, list): region = [region]
if not self.hist_store.has_key(htag):
h_dict = {}
for r in region:
h_dict[r] = self.__hist__(
histname=histname,
region=r,
icut=icut,
sys=sys,
mode=mode,
)
h = None
if not all(v is None for v in h_dict.values()):
h = histutils.add_hists(h_dict.values())
if h:
self.sample.plotopts.configure(h)
log.debug('%s: %s' % (self.sample.name, h.Integral()))
self.hist_store[htag] = h
return self.hist_store[htag]
def __hist__(self,region=None,icut=None,histname=None,sys=None,mode=None):
hists = []
for s in self.samples:
h = s.hist(region=region,icut=icut,histname=histname,sys=sys,mode=mode)
if h: hists.append(h)
h = histutils.add_hists(hists)
return h
def hist(self,histname=None,region=None,icut=None,sys=None,mode=None):
"""
Supports list of regions to be added
"""
if not self.is_affected_by_systematic(sys): sys=mode=None
htag = self.get_hist_tag(histname,region,icut,sys,mode)
if not isinstance(region,list): region = [region]
if not self.hist_store.has_key(htag):
h_dict = {}
for r in region:
h_dict[r] = self.__hist__(
histname=histname,
region=r,
icut=icut,
sys=sys,
mode=mode,
)
h = None
if not all(v is None for v in h_dict.values()):
h = histutils.add_hists(h_dict.values())
if h:
self.sample.plotopts.configure(h)
log.debug('%s: %s'%(self.sample.name,h.Integral()))
self.hist_store[htag] = h
return self.hist_store[htag]
def __hist__(self,region=None,histname=None,icut=None,sys=None,mode=None):
# ----------------
# addition regions
# ----------------
h_addition = []
for reg in self.addition_regions:
if "fakes" in self.sample.name:
h_data_minus_mc = self.data_minus_mc.hist(region=reg,histname=histname,icut=icut,sys=sys,mode=mode)
if h_data_minus_mc: h_addition.append(h_data_minus_mc.Clone())
elif "data" in self.sample.name:
h_data = self.data_sample.hist(region=reg,histname=histname,icut=icut,sys=sys,mode=mode)
if h_data: h_addition.append(h_data.Clone())
elif self.sample.type == "mc":
for mcs in self.mc_samples:
if mcs.name in self.sample.name:
h_mcs = mcs.hist(region=reg,histname=histname,icut=icut,sys=sys,mode=mode)
if h_mcs: h_addition.append(h_mcs.Clone())
# -------------------
# subtraction regions
# -------------------
h_subtraction = []
for reg in self.subtraction_regions:
if "fakes" in self.sample.name:
h_data_minus_mc = self.data_minus_mc.hist(region=reg,histname=histname,icut=icut,sys=sys,mode=mode)
if h_data_minus_mc: h_subtraction.append(h_data_minus_mc.Clone())
elif "data" in self.sample.name:
h_data = self.data_sample.hist(region=reg,histname=histname,icut=icut,sys=sys,mode=mode)
if h_data: h_subtraction.append(h_data.Clone())
elif self.sample.type == "mc":
for mcs in self.mc_samples:
if mcs.name in self.sample.name:
h_mcs = mcs.hist(region=reg,histname=histname,icut=icut,sys=sys,mode=mode)
if h_mcs: h_subtraction.append(h_mcs.Clone())
h = histutils.add_hists(h_addition)
if h_subtraction:
h.Add(histutils.add_hists(h_subtraction), -1.0)
return h
def __hist__(self,
region=None,
icut=None,
histname=None,
sys=None,
mode=None):
hists = []
for s in self.samples:
h = s.hist(region=region,
icut=icut,
histname=histname,
sys=sys,
mode=mode)
if h: hists.append(h)
h = histutils.add_hists(hists)
return h
def __hist__(self,
region=None,
histname=None,
icut=None,
sys=None,
mode=None):
# ----------------
# addition regions
# ----------------
h_addition = []
for reg in self.addition_regions:
if "fakes" in self.sample.name:
h_data_minus_mc = self.data_minus_mc.hist(region=reg,
histname=histname,
icut=icut,
sys=sys,
mode=mode)
if h_data_minus_mc: h_addition.append(h_data_minus_mc.Clone())
elif "data" in self.sample.name:
h_data = self.data_sample.hist(region=reg,
histname=histname,
icut=icut,
sys=sys,
mode=mode)
if h_data: h_addition.append(h_data.Clone())
elif self.sample.type == "mc":
for mcs in self.mc_samples:
if mcs.name in self.sample.name:
h_mcs = mcs.hist(region=reg,
histname=histname,
icut=icut,
sys=sys,
mode=mode)
if h_mcs: h_addition.append(h_mcs.Clone())
# -------------------
# subtraction regions
# -------------------
h_subtraction = []
for reg in self.subtraction_regions:
if "fakes" in self.sample.name:
h_data_minus_mc = self.data_minus_mc.hist(region=reg,
histname=histname,
icut=icut,
sys=sys,
mode=mode)
if h_data_minus_mc:
h_subtraction.append(h_data_minus_mc.Clone())
elif "data" in self.sample.name:
h_data = self.data_sample.hist(region=reg,
histname=histname,
icut=icut,
sys=sys,
mode=mode)
if h_data: h_subtraction.append(h_data.Clone())
elif self.sample.type == "mc":
for mcs in self.mc_samples:
if mcs.name in self.sample.name:
h_mcs = mcs.hist(region=reg,
histname=histname,
icut=icut,
sys=sys,
mode=mode)
if h_mcs: h_subtraction.append(h_mcs.Clone())
h = histutils.add_hists(h_addition)
if h_subtraction:
h.Add(histutils.add_hists(h_subtraction), -1.0)
return h
def plot_hist(
backgrounds=None,
signal=None,
data=None,
region=None,
label=None,
icut=None,
histname=None,
log=False,
logx=False,
blind=None,
xmin=None,
xmax=None,
rebin=None,
rebinVar=[],
sys_dict=None,
do_ratio_plot=True,
save_eps=False,
plotsfile=None,
sig_rescale=None,
xlabel=None,
):
'''
TODO:
* move this to a new module when finished
* write description for this function
'''
print 'making plot: ', histname, ' in region', region
print 'rebinVar', rebinVar
print xlabel
#assert signal, "ERROR: no signal provided for plot_hist"
assert backgrounds, "ERROR: no background provided for plot_hist"
samples = list(backgrounds)
if signal: samples += signal
if data: samples += [data]
## generate nominal hists
hists = get_hists(
region=region,
icut=icut,
histname=histname,
samples=samples,
rebin=rebin,
rebinVar=rebinVar,
sys_dict=sys_dict,
)
## sum nominal background
h_bkg_list = []
for b in backgrounds:
if not b in hists.keys(): continue
h_bkg_list.append(hists[b])
h_total = histutils.add_hists(h_bkg_list)
## get stat / sys bands
if sys_dict:
total_hists = get_total_stat_sys_hists(h_bkg_list, sys_dict)
g_stat = make_band_graph_from_hist(total_hists[0])
g_stat.SetFillColor(ROOT.kGray)
g_stat.SetLineColor(ROOT.kGray)
g_tot = make_band_graph_from_hist(total_hists[3], total_hists[4])
g_tot.SetFillColor(ROOT.kOrange - 9)
g_tot.SetLineColor(ROOT.kOrange - 9)
else:
h_total_stat = make_stat_hist(h_total)
g_stat = make_band_graph_from_hist(h_total_stat)
g_stat.SetFillColor(ROOT.kGray)
g_stat.SetLineColor(ROOT.kGray)
g_tot = None
## blind data and create ratio
h_data = None
h_ratio = None
if data:
h_data = hists[data]
h_data.SetMarkerSize(0.8)
h_data.Sumw2(0)
h_data.SetBinErrorOption(1)
if blind: apply_blind(h_data, blind)
h_ratio = h_data.Clone('%s_ratio' % (h_data.GetName()))
h_ratioGr = ROOT.TGraphAsymmErrors()
h_ratioGr.SetMarkerSize(0.8)
## dont use Divide as it will propagate MC stat error to the ratio.
#h_ratio.Divide(h_total)
for i in range(1, h_ratio.GetNbinsX() + 1):
if h_total.GetBinContent(i) != 0 and h_data.GetBinContent(i) != 0:
h_ratio.SetBinContent(
i,
h_ratio.GetBinContent(i) / h_total.GetBinContent(i))
h_ratio.SetBinError(
i,
h_ratio.GetBinError(i) / h_total.GetBinContent(i))
h_ratioGr.SetPoint(h_ratioGr.GetN(), h_ratio.GetBinCenter(i),
h_ratio.GetBinContent(i))
h_ratioGr.SetPointError(
h_ratioGr.GetN() - 1, 0, 0,
h_data.GetBinErrorLow(i) / h_total.GetBinContent(i),
h_data.GetBinErrorUp(i) / h_total.GetBinContent(i))
else:
h_ratio.SetBinContent(i, -100)
h_ratio.SetBinError(i, 0)
h_ratioGr.SetPoint(h_ratioGr.GetN(), h_ratio.GetBinCenter(i),
h_ratio.GetBinContent(i))
h_ratioGr.SetPointError(h_ratioGr.GetN() - 1, 0, 0, 0, 0)
yaxistitle = None
for b in reversed(backgrounds):
if not b in hists.keys(): continue
else:
yaxistitle = hists[b].GetYaxis().GetTitle()
break
## create stack
h_stack = ROOT.THStack()
#for s in reversed(signal+backgrounds):
for b in reversed(backgrounds):
if not b in hists.keys(): continue
h_stack.Add(hists[b])
if signal:
nLegend = len(signal + backgrounds) + 2
else:
nLegend = len(backgrounds) + 2
x_legend = 0.63
x_leg_shift = 0
y_leg_shift = -0.1
legYCompr = 8.0
legYMax = 0.85
legYMin = legYMax - (legYMax - (0.55 + y_leg_shift)) / legYCompr * nLegend
legXMin = x_legend + x_leg_shift
legXMax = legXMin + 0.25
## create legend (could use metaroot functionality?)
if not do_ratio_plot:
legXMin -= 0.005
legXMax -= 0.058
leg = ROOT.TLegend(legXMin / 1.2,
legYMin + 0.05 + (legYMax - legYMin) / 1.9,
legXMax + 0.08, legYMax + 0.05)
leg.SetBorderSize(0)
leg.SetNColumns(2)
leg.SetFillColor(0)
leg.SetFillStyle(0)
leg.SetTextSize(0.045)
if not do_ratio_plot:
leg.SetTextSize(0.035)
if data: leg.AddEntry(h_data, "#font[42]{" + str(data.tlatex) + "}", 'P')
for b in backgrounds:
if not b in hists.keys(): continue
leg.AddEntry(hists[b], "#font[42]{" + str(b.tlatex) + "}", 'F')
leg2 = ROOT.TLegend(legXMin / 1.2,
legYMin + 0.05 + (legYMax - legYMin) / 2.5 - 0.07,
legXMax + 0.08 - 0.2,
legYMin + 0.05 + (legYMax - legYMin) / 1.9)
leg2.SetBorderSize(0)
leg2.SetFillColor(0)
leg2.SetFillStyle(0)
leg2.SetTextSize(0.045)
if not do_ratio_plot:
leg2.SetTextSize(0.035)
if signal:
for s in signal:
sig_tag = s.tlatex
if sig_rescale: sig_tag = "%d #times " % int(sig_rescale) + sig_tag
if not s in hists.keys(): continue
#leg2.AddEntry(hists[s],"\font[42]{"+str(sig_tag)+"}",'F')
leg2.AddEntry(hists[s], str(sig_tag), 'F')
## create canvas
reg = region
if not reg: reg = ""
name = '_'.join([reg, histname]).replace('/', '_')
cname = "c_final_%s" % name
if do_ratio_plot: c = ROOT.TCanvas(cname, cname, 600, 600)
else: c = ROOT.TCanvas(cname, cname, 600, 600)
if xmin == None: xmin = h_total.GetBinLowEdge(1)
if xmax == None: xmax = h_total.GetBinLowEdge(h_total.GetNbinsX() + 1)
ymin = 1.e-2 if log else 0.0
ymax = h_total.GetMaximum()
for b in backgrounds:
if not b in hists.keys(): continue
ymax = max([ymax, hists[b].GetMaximum()])
if data: ymax = max([ymax, h_data.GetMaximum()])
if log: ymax *= 4000.
else: ymax *= 1.7
xtitle = h_total.GetXaxis().GetTitle()
if do_ratio_plot: rsplit = 0.3
else: rsplit = 0.
pad1 = ROOT.TPad("pad1", "top pad", 0., rsplit, 1., 1.)
pad1.SetLeftMargin(0.15)
pad1.SetLeftMargin(0.15)
pad1.SetTicky()
pad1.SetTickx()
if do_ratio_plot:
pad1.SetBottomMargin(0.04)
pad1.SetTopMargin(0.07)
else:
pad1.SetBottomMargin(0.15)
pad1.Draw()
if do_ratio_plot:
pad2 = ROOT.TPad("pad2", "bottom pad", 0, 0, 1, rsplit)
pad2.SetTopMargin(0.04)
pad2.SetBottomMargin(0.40)
pad2.SetLeftMargin(0.15)
pad2.SetTicky()
pad2.SetTickx()
pad2.SetGridy()
#if do_ratio_plot: pad2.Draw()
pad2.Draw()
pad1.cd()
ytitle = "Events"
if not rebin: ytitle = yaxistitle
elif rebin != 1 and "GeV" in xtitle:
ytitle += " / %s GeV" % rebin
fr1 = pad1.DrawFrame(xmin, ymin, xmax, ymax, ';%s;%s' % (xtitle, ytitle))
if do_ratio_plot:
fr1.GetXaxis().SetTitleSize(0)
fr1.GetXaxis().SetLabelSize(0)
xaxis1 = fr1.GetXaxis()
yaxis1 = fr1.GetYaxis()
scale = (1.3 + rsplit)
if not do_ratio_plot:
xaxis1.SetTitleSize(0.7 * xaxis1.GetTitleSize() * scale)
xaxis1.SetLabelSize(0.7 * xaxis1.GetLabelSize() * scale)
xaxis1.SetTickLength(xaxis1.GetTickLength() * scale)
xaxis1.SetTitleOffset(xaxis1.GetTitleOffset() / scale)
xaxis1.SetLabelOffset(1. * xaxis1.GetLabelOffset() / scale)
xaxis1.SetNoExponent()
xaxis1.SetMoreLogLabels()
yaxis1.SetTitleSize(yaxis1.GetTitleSize() * scale / 1.3)
yaxis1.SetTitleOffset(2.1 * yaxis1.GetTitleOffset() / scale / 1.8)
yaxis1.SetLabelSize(0.8 * yaxis1.GetLabelSize() * scale / 1.09)
yaxis1.SetLabelOffset(1. * yaxis1.GetLabelOffset() / scale)
xaxis1.SetNdivisions(510)
yaxis1.SetNdivisions(510)
h_stack.Draw("SAME,HIST")
if signal:
for s in reversed(signal):
if not s in hists.keys(): continue
if sig_rescale: hists[s].Scale(sig_rescale)
hists[s].Draw("SAME,HIST")
if data:
h_data.Draw("SAME X0 P E")
pad1.SetLogy(log)
if logx != None: pad1.SetLogx(logx)
leg.Draw()
if signal: leg2.Draw()
pad1.RedrawAxis()
tlatex = ROOT.TLatex()
tlatex.SetNDC()
tlatex.SetTextSize(0.05)
lx = 0.6 # for ATLAS internal
ly = 0.845
tlatex.SetTextFont(42)
ty = 0.96
th = 0.07
tx = 0.18
lumi = backgrounds[0].estimator.hm.target_lumi / 1000.
textsize = 0.8
if not do_ratio_plot: textsize = 0.8
latex_y = ty - 2. * th + 0.05
tlatex.DrawLatex(tx, latex_y - 0.054,
'#font[42]{#sqrt{s} = 13 TeV, %2.1f fb^{-1}}' % (lumi))
ROOT.ATLASLabel(tx, latex_y, "Internal", 1)
if label:
latex_y -= 0.06
#for i,line in enumerate(label):
# tlatex.DrawLatex(tx,latex_y-i*0.06,"#scale[%lf]{%s}"%(textsize,line))
tlatex.DrawLatex(tx, latex_y - 0.04, "#font[42]{%s}" % label)
if blind:
line = ROOT.TLine()
line.SetLineColor(ROOT.kBlack)
line.SetLineStyle(2)
line.DrawLine(blind, ymin, blind, ymax)
bltext = ROOT.TLatex()
bltext.SetTextFont(42)
bltext.SetTextSize(0.04)
bltext.SetTextAngle(90.)
bltext.SetTextAlign(31)
bltext.DrawLatex(blind, ymax, 'Blind ')
if do_ratio_plot:
pad2.cd()
fr2 = pad2.DrawFrame(xmin, 0.49, xmax, 1.51,
';%s;Data / Bkg.' % (xtitle))
xaxis2 = fr2.GetXaxis()
yaxis2 = fr2.GetYaxis()
scale = (1. / rsplit)
yaxis2.SetTitleSize(yaxis2.GetTitleSize() * scale / 1.2)
yaxis2.SetLabelSize(yaxis2.GetLabelSize() * scale / 1.2)
yaxis2.SetTitleOffset(2.1 * yaxis2.GetTitleOffset() / scale / 2)
yaxis2.SetLabelOffset(0.4 * yaxis2.GetLabelOffset() * scale)
xaxis2.SetTitleSize(xaxis2.GetTitleSize() * scale / 1.2)
xaxis2.SetLabelSize(0.8 * xaxis2.GetLabelSize() * scale)
xaxis2.SetTickLength(xaxis2.GetTickLength() * scale)
xaxis2.SetTitleOffset(3.2 * xaxis2.GetTitleOffset() / scale / 1.2)
xaxis2.SetLabelOffset(2.5 * xaxis2.GetLabelOffset() / scale)
yaxis2.SetNdivisions(510)
xaxis2.SetNdivisions(510)
if logx:
pad2.SetLogx(logx)
xaxis2.SetMoreLogLabels()
xaxis2.SetNoExponent()
else:
pass
if g_tot:
g_tot.Draw("E2")
g_stat.Draw("SAME,E2")
leg.AddEntry(g_stat, "#font[42]{" + str("MC Stat.") + "}", 'F')
leg.AddEntry(g_tot, "#font[42]{" + str("Sys. Unc.") + "}", 'F')
else:
g_stat.Draw("E2")
leg.AddEntry(g_stat, "#font[42]{" + str("MC Stat.") + "}", 'F')
arrows = []
if data:
#h_ratio.Draw("SAME X0 P E0")
h_ratioGr.Draw("SAME E0 P")
h_ratioGr.SetLineWidth(2)
for bin_itr in range(1, h_ratio.GetNbinsX() + 1):
if (h_total.GetBinContent(bin_itr) == 0
or h_data.GetBinContent(bin_itr) == 0):
continue
if (h_ratio.GetBinContent(bin_itr) -
h_data.GetBinErrorLow(bin_itr) /
h_total.GetBinContent(bin_itr)) > 1.51:
arrowX = h_ratio.GetBinCenter(bin_itr)
arrow = ROOT.TArrow(arrowX, 1.35, arrowX, 1.5, 0.012, "=>")
arrow.SetLineWidth(2)
arrow.SetLineColor(ROOT.kRed + 1)
arrow.SetFillColor(ROOT.kRed + 1)
arrows += [arrow]
arrow.Draw()
elif (h_ratio.GetBinContent(bin_itr) +
h_data.GetBinErrorUp(bin_itr) /
h_total.GetBinContent(bin_itr)
) < 0.49 and h_ratio.GetBinContent(bin_itr) not in [
-100, 0
]:
arrowX = h_ratio.GetBinCenter(bin_itr)
arrow = ROOT.TArrow(arrowX, 0.50, arrowX, 0.65, 0.012,
"<=")
arrow.SetLineWidth(2)
arrow.SetLineColor(ROOT.kRed + 1)
arrow.SetFillColor(ROOT.kRed + 1)
arrows += [arrow]
arrow.Draw()
pad2.RedrawAxis()
pad2.RedrawAxis("g")
if xlabel:
if not do_ratio_plot:
xaxis1.SetTitle(xlabel)
else:
xaxis2.SetTitle(xlabel)
print 'saving plot...'
if save_eps:
eps_file = plotsfile.replace(".root", ".eps")
if not log: c.SaveAs(eps_file)
else: c.SaveAs(eps_file.replace(".eps", "_LOG.eps"))
fout = ROOT.TFile.Open(plotsfile, 'UPDATE')
fout.WriteTObject(c)
fout.Close()
def plot_hist(
backgrounds = None,
signal = None,
data = None,
region = None,
label = None,
icut = None,
histname = None,
log = False,
logx = False,
blind = None,
xmin = None,
xmax = None,
rebin = None,
sys_dict = None,
do_ratio_plot = False,
save_eps = False,
plotsfile = None,
sig_rescale = None,
):
'''
TODO:
* move this to a new module when finished
* write description for this function
'''
print 'making plot: ', histname, ' in region', region
#assert signal, "ERROR: no signal provided for plot_hist"
assert backgrounds, "ERROR: no background provided for plot_hist"
samples = backgrounds + signal
if data: samples += [data]
## generate nominal hists
hists = get_hists(
region=region,
icut=icut,
histname=histname,
samples=samples,
rebin=rebin,
sys_dict=sys_dict,
)
## sum nominal background
h_bkg_list = []
for b in backgrounds:
if not b in hists.keys(): continue
h_bkg_list.append(hists[b])
h_total = histutils.add_hists(h_bkg_list)
## get stat / sys bands
if sys_dict:
total_hists = get_total_stat_sys_hists(h_bkg_list,sys_dict)
g_stat = make_band_graph_from_hist(total_hists[0])
g_stat.SetFillColor(ROOT.kGray+1)
g_tot = make_band_graph_from_hist(total_hists[3],total_hists[4])
g_tot.SetFillColor(ROOT.kRed)
else:
h_total_stat = make_stat_hist(h_total)
g_stat = make_band_graph_from_hist(h_total_stat)
g_stat.SetFillColor(ROOT.kGray+1)
g_tot = None
## blind data and create ratio
h_data = None
h_ratio = None
if data:
h_data = hists[data]
if blind: apply_blind(h_data,blind)
h_ratio = h_data.Clone('%s_ratio'%(h_data.GetName()))
h_ratio.Divide(h_total)
yaxistitle = None
for b in reversed(backgrounds):
if not b in hists.keys(): continue
else :
yaxistitle = hists[b].GetYaxis().GetTitle()
break
## create stack
h_stack = ROOT.THStack()
#for s in reversed(signal+backgrounds):
for b in reversed(backgrounds):
if not b in hists.keys(): continue
h_stack.Add(hists[b])
nLegend = len(signal+backgrounds) + 1
x_legend = 0.63
x_leg_shift = -0.055
y_leg_shift = 0.0
legYCompr = 8.0
legYMax = 0.85
legYMin = legYMax - (legYMax - (0.55 + y_leg_shift)) / legYCompr * nLegend
legXMin = x_legend + x_leg_shift
legXMax = legXMin + 0.4
## create legend (could use metaroot functionality?)
if not do_ratio_plot:
legXMin -= 0.005
legXMax -= 0.058
leg = ROOT.TLegend(legXMin,legYMin,legXMax,legYMax)
leg.SetBorderSize(0)
leg.SetFillColor(0)
leg.SetFillStyle(0)
if data: leg.AddEntry(h_data,data.tlatex,'PL')
if signal:
for s in signal:
sig_tag = s.tlatex
if sig_rescale: sig_tag = "%d #times "%int(sig_rescale) + sig_tag
if not s in hists.keys(): continue
leg.AddEntry(hists[s],sig_tag,'F')
for b in backgrounds:
if not b in hists.keys(): continue
leg.AddEntry(hists[b],b.tlatex,'F')
## create canvas
reg = region
if not reg: reg = ""
name = '_'.join([reg,histname]).replace('/','_')
cname = "c_final_%s"%name
if do_ratio_plot: c = ROOT.TCanvas(cname,cname,750,800)
else: c = ROOT.TCanvas(cname,cname,800,700)
if xmin==None: xmin = h_total.GetBinLowEdge(1)
if xmax==None: xmax = h_total.GetBinLowEdge(h_total.GetNbinsX()+1)
ymin = 1.e-3
ymax = h_total.GetMaximum()
for b in backgrounds:
if not b in hists.keys(): continue
ymax = max([ymax,hists[b].GetMaximum()])
if data: ymax = max([ymax,h_data.GetMaximum()])
if log: ymax *= 100000.
else: ymax *= 1.8
xtitle = h_total.GetXaxis().GetTitle()
if do_ratio_plot: rsplit = 0.3
else: rsplit = 0.
pad1 = ROOT.TPad("pad1","top pad",0.,rsplit,1.,1.)
pad1.SetLeftMargin(0.15)
pad1.SetTicky()
pad1.SetTickx()
if do_ratio_plot: pad1.SetBottomMargin(0.04)
else: pad1.SetBottomMargin(0.15)
pad1.Draw()
if do_ratio_plot:
pad2 = ROOT.TPad("pad2","bottom pad",0,0,1,rsplit)
pad2.SetTopMargin(0.04)
pad2.SetBottomMargin(0.40)
pad2.SetLeftMargin(0.15)
pad2.SetTicky()
pad2.SetTickx()
pad2.SetGridy()
#if do_ratio_plot: pad2.Draw()
pad2.Draw()
pad1.cd()
ytitle = "Events"
if not rebin: ytitle = yaxistitle
elif rebin!=1:
if not "BDT" in xtitle:
ytitle += " / %s"%rebin
if ("eta" in xtitle) or ("phi" in xtitle) or ("trk" in xtitle): pass
else: ytitle += " GeV"
else: ytitle += " / %s"%(0.05)
fr1 = pad1.DrawFrame(xmin,ymin,xmax,ymax,';%s;%s'%(xtitle,ytitle))
if do_ratio_plot:
fr1.GetXaxis().SetTitleSize(0)
fr1.GetXaxis().SetLabelSize(0)
xaxis1 = fr1.GetXaxis()
yaxis1 = fr1.GetYaxis()
scale = (1.3+rsplit)
if not do_ratio_plot:
xaxis1.SetTitleSize( xaxis1.GetTitleSize() * scale )
xaxis1.SetLabelSize( 0.9 * xaxis1.GetLabelSize() * scale )
xaxis1.SetTickLength( xaxis1.GetTickLength() * scale )
xaxis1.SetTitleOffset( 1.3* xaxis1.GetTitleOffset() / scale )
xaxis1.SetLabelOffset( 1.* xaxis1.GetLabelOffset() / scale )
yaxis1.SetTitleSize( yaxis1.GetTitleSize() * scale )
yaxis1.SetTitleOffset( 2.1 * yaxis1.GetTitleOffset() / scale )
yaxis1.SetLabelSize( 0.8 * yaxis1.GetLabelSize() * scale )
yaxis1.SetLabelOffset( 1. * yaxis1.GetLabelOffset() / scale )
xaxis1.SetNdivisions(510)
yaxis1.SetNdivisions(510)
h_stack.Draw("SAME,HIST")
if signal:
for s in reversed(signal):
if not s in hists.keys(): continue
if sig_rescale: hists[s].Scale(sig_rescale)
hists[s].Draw("SAME,HIST")
if data: h_data.Draw("SAME")
pad1.SetLogy(log)
pad1.SetLogx(logx)
leg.Draw()
pad1.RedrawAxis()
tlatex = ROOT.TLatex()
tlatex.SetNDC()
tlatex.SetTextSize(0.05)
lx = 0.6 # for ATLAS internal
ly = 0.845
tlatex.SetTextFont(42)
ty = 0.96
th = 0.07
tx = 0.18
lumi = backgrounds[0].estimator.hm.target_lumi/1000.
textsize = 0.8
if not do_ratio_plot: textsize = 0.8
latex_y = ty-2.*th
tlatex.DrawLatex(tx,latex_y,'#scale[%lf]{#scale[%lf]{#int}L dt = %2.1f fb^{-1}, #sqrt{s} = 13 TeV}'%(textsize,0.8*textsize,lumi) )
if label:
latex_y -= 0.06
#for i,line in enumerate(label):
# tlatex.DrawLatex(tx,latex_y-i*0.06,"#scale[%lf]{%s}"%(textsize,line))
tlatex.DrawLatex(tx,latex_y - 0.06,"#scale[%lf]{%s}"%(textsize,label))
if blind:
line = ROOT.TLine()
line.SetLineColor(ROOT.kBlack)
line.SetLineStyle(2)
line.DrawLine(blind,ymin,blind,ymax)
bltext = ROOT.TLatex()
bltext.SetTextFont(42)
bltext.SetTextSize(0.04)
bltext.SetTextAngle(90.)
bltext.SetTextAlign(31)
bltext.DrawLatex(blind,ymax, 'Blind ')
if do_ratio_plot:
pad2.cd()
fr2 = pad2.DrawFrame(xmin,0.49,xmax,1.51,';%s;Data / Bkg_{SM}'%(xtitle))
xaxis2 = fr2.GetXaxis()
yaxis2 = fr2.GetYaxis()
scale = (1. / rsplit)
yaxis2.SetTitleSize( yaxis2.GetTitleSize() * scale )
yaxis2.SetLabelSize( yaxis2.GetLabelSize() * scale )
yaxis2.SetTitleOffset( 2.1* yaxis2.GetTitleOffset() / scale )
yaxis2.SetLabelOffset(0.4 * yaxis2.GetLabelOffset() * scale )
xaxis2.SetTitleSize( xaxis2.GetTitleSize() * scale )
xaxis2.SetLabelSize( 0.8 * xaxis2.GetLabelSize() * scale )
xaxis2.SetTickLength( xaxis2.GetTickLength() * scale )
xaxis2.SetTitleOffset( 3.2* xaxis2.GetTitleOffset() / scale )
xaxis2.SetLabelOffset( 2.5* xaxis2.GetLabelOffset() / scale )
yaxis2.SetNdivisions(510)
xaxis2.SetNdivisions(510)
if logx:
pad2.SetLogx(logx)
xaxis2.SetMoreLogLabels()
else:
pass
if g_tot:
g_tot.Draw("E2")
g_stat.Draw("SAME,E2")
else: g_stat.Draw("E2")
if data: h_ratio.Draw("SAME")
pad2.RedrawAxis()
print 'saving plot...'
if save_eps:
eps_file = plotsfile.replace(".root",".eps")
if not log: c.SaveAs(eps_file)
else: c.SaveAs(eps_file.replace(".eps","_LOG.eps"))
fout = ROOT.TFile.Open(plotsfile,'UPDATE')
fout.WriteTObject(c)
fout.Close()
def __hist__(self,
region=None,
histname=None,
icut=None,
sys=None,
mode=None):
"""
implementation of nominal hist getter
"""
# compute k-factors for OS and SS regions
kf_OS = {}
kf_SS = {}
# initialise k-factors
for s in self.mc_samples:
kf_OS[s] = 1.0
kf_SS[s] = 1.0
kf_regions = self.kf_regions
# compute k-factors
for s in self.kf_regions.keys():
tmp_samples = list(self.mc_samples)
tmp_samples.remove(s)
data_sub = copy(self.data_minus_mc)
data_sub.mc_samples = tmp_samples
kf_OS[s] = histutils.full_integral(
data_sub.hist(region=kf_regions[s]["OS"],
histname=histname,
icut=kf_regions[s]["ncuts"],
sys=sys,
mode=mode))
kf_OS[s] /= histutils.full_integral(
s.hist(region=kf_regions[s]["OS"],
histname=histname,
icut=kf_regions[s]["ncuts"],
sys=sys,
mode=mode))
kf_SS[s] = histutils.full_integral(
data_sub.hist(region=kf_regions[s]["SS"],
histname=histname,
icut=kf_regions[s]["ncuts"],
sys=sys,
mode=mode))
kf_SS[s] /= histutils.full_integral(
s.hist(region=kf_regions[s]["SS"],
histname=histname,
icut=kf_regions[s]["ncuts"],
sys=sys,
mode=mode))
# compute rqcd transfer factor
# adding k_factors to the estimators
self.data_minus_mc_num.mc_samples_rescales = kf_OS
self.data_minus_mc_den.mc_samples_rescales = kf_SS
rqcd_regions = self.rqcd_regions
rqcd = histutils.full_integral(
self.data_minus_mc_num.hist(
region=rqcd_regions[self.data_sample]["num"],
histname=histname,
icut=rqcd_regions[self.data_sample]["ncuts"],
sys=sys,
mode=mode))
rqcd /= histutils.full_integral(
self.data_minus_mc_den.hist(
region=rqcd_regions[self.data_sample]["den"],
histname=histname,
icut=rqcd_regions[self.data_sample]["ncuts"],
sys=sys,
mode=mode))
if self.print_info:
print
print
print "++++++++++++++++++++++++++++++++++++++++"
print "Iteration for %s" % self.sample.name
print "++++++++++++++++++++++++++++++++++++++++"
print
print "k-factors for %s, sys %s, sys_mode %s" % (histname, sys,
mode)
print "----------------------------------------"
print "Sample | Region | k-factor | Rqcd"
print "----------------------------------------"
for s in self.kf_regions.keys():
print "%s | %s | %.3lf | %.3lf" % (s.name, kf_regions[s]["OS"],
kf_OS[s], rqcd)
print "%s | %s | %.3lf | %.3lf" % (s.name, kf_regions[s]["SS"],
kf_SS[s], rqcd)
print
addon_regions = self.addon_regions
h_fakes = self.data_sample.hist(
region=addon_regions[self.data_sample]["SS"],
histname=histname,
icut=addon_regions[self.data_sample]["ncuts"])
h_fakes.Scale(rqcd)
h_addon = {}
h_addon[self.data_sample] = h_fakes.Clone()
for s in addon_regions.keys():
if s == self.data_sample: continue
h_addon[s] = s.hist(region=addon_regions[s]["OS"],
histname=histname,
icut=addon_regions[s]["ncuts"],
sys=sys,
mode=mode).Clone()
h_addon[s].Scale(kf_OS[s])
h_addon[s].Add(
s.hist(region=addon_regions[s]["SS"],
histname=histname,
icut=addon_regions[s]["ncuts"],
sys=sys,
mode=mode).Clone(), -1.0 * rqcd * kf_SS[s])
"""
ToDo: implement sys uncertainty for the scales!!!
"""
if sys and "scale" in sys.name: pass
if not self.sample.name == "fakes":
for s in h_addon.keys():
if self.sample.name == s.name:
return h_addon[s]
else:
return histutils.add_hists(h_addon.values())
def plot_hist(
backgrounds=None,
signal=None,
data=None,
region=None,
label=None,
icut=None,
histname=None,
log=False,
logx=False,
blind=None,
xmin=None,
xmax=None,
rebin=None,
sys_dict=None,
do_ratio_plot=False,
plotsfile=None,
sig_rescale=None,
):
'''
TODO:
* move this to a new module when finished
* write description for this function
'''
print 'making plot: ', histname, ' in region', region
assert signal, "ERROR: no signal provided for plot_hist"
assert backgrounds, "ERROR: no background provided for plot_hist"
samples = backgrounds + signal
if data: samples += [data]
## generate nominal hists
hists = get_hists(
region=region,
icut=icut,
histname=histname,
samples=samples,
rebin=rebin,
sys_dict=sys_dict,
)
## sum nominal background
h_samp_list = []
for s in backgrounds + signal:
if not s in hists.keys(): continue
h_samp_list.append(hists[s])
h_total = histutils.add_hists(h_samp_list)
## get stat / sys bands
if sys_dict:
total_hists = get_total_stat_sys_hists(h_samp_list, sys_dict)
g_stat = make_band_graph_from_hist(total_hists[0])
g_stat.SetFillColor(ROOT.kGray + 1)
g_tot = make_band_graph_from_hist(total_hists[3], total_hists[4])
g_tot.SetFillColor(ROOT.kRed)
else:
h_total_stat = make_stat_hist(h_total)
g_stat = make_band_graph_from_hist(h_total_stat)
g_stat.SetFillColor(ROOT.kGray + 1)
g_tot = None
## blind data and create ratio
h_data = None
h_ratio = None
if data:
h_data = hists[data]
if blind: apply_blind(h_data, blind)
h_ratio = h_data.Clone('%s_ratio' % (h_data.GetName()))
h_ratio.Divide(h_total)
yaxistitle = None
for b in reversed(backgrounds):
if not b in hists.keys(): continue
else:
yaxistitle = hists[b].GetYaxis().GetTitle()
break
## create stack
h_stack = ROOT.THStack()
for b in reversed(signal + backgrounds):
if not b in hists.keys(): continue
h_stack.Add(hists[b])
nLegend = len(signal + backgrounds) + 1
x_legend = 0.63
x_leg_shift = -0.055
y_leg_shift = 0.0
legYCompr = 8.0
legYMax = 0.85
legYMin = legYMax - (legYMax - (0.55 + y_leg_shift)) / legYCompr * nLegend
legXMin = x_legend + x_leg_shift
legXMax = legXMin + 0.4
## create legend (could use metaroot functionality?)
if not do_ratio_plot:
legXMin -= 0.005
legXMax -= 0.058
leg = ROOT.TLegend(legXMin, legYMin, legXMax, legYMax)
leg.SetBorderSize(0)
leg.SetFillColor(0)
leg.SetFillStyle(0)
if data: leg.AddEntry(h_data, data.tlatex, 'PL')
for s in signal:
sig_tag = s.tlatex
if sig_rescale: sig_tag = "%d #times " % int(sig_rescale) + sig_tag
if not s in hists.keys(): continue
leg.AddEntry(hists[s], sig_tag, 'F')
for b in backgrounds:
if not b in hists.keys(): continue
leg.AddEntry(hists[b], b.tlatex, 'F')
## create canvas
reg = region
if not reg: reg = ""
name = '_'.join([reg, histname]).replace('/', '_')
cname = "c_final_%s" % name
if do_ratio_plot: c = ROOT.TCanvas(cname, cname, 750, 800)
else: c = ROOT.TCanvas(cname, cname, 800, 700)
if xmin == None: xmin = h_total.GetBinLowEdge(1)
if xmax == None: xmax = h_total.GetBinLowEdge(h_total.GetNbinsX() + 1)
ymin = 1.e-3
ymax = h_total.GetMaximum()
for s in signal:
if not s in hists.keys(): continue
ymax = max([ymax, hists[s].GetMaximum()])
if data: ymax = max([ymax, h_data.GetMaximum()])
if log: ymax *= 100000.
else: ymax *= 1.8
xtitle = h_total.GetXaxis().GetTitle()
if do_ratio_plot: rsplit = 0.3
else: rsplit = 0.
pad1 = ROOT.TPad("pad1", "top pad", 0., rsplit, 1., 1.)
pad1.SetLeftMargin(0.15)
pad1.SetTicky()
pad1.SetTickx()
if do_ratio_plot: pad1.SetBottomMargin(0.04)
else: pad1.SetBottomMargin(0.15)
pad1.Draw()
if do_ratio_plot:
pad2 = ROOT.TPad("pad2", "bottom pad", 0, 0, 1, rsplit)
pad2.SetTopMargin(0.04)
pad2.SetBottomMargin(0.40)
pad2.SetLeftMargin(0.15)
pad2.SetTicky()
pad2.SetTickx()
pad2.SetGridy()
#if do_ratio_plot: pad2.Draw()
pad2.Draw()
pad1.cd()
ytitle = "Events"
if not rebin: ytitle = yaxistitle
elif rebin != 1:
if not "BDT" in xtitle:
ytitle += " / %s" % rebin
if ("eta" in xtitle) or ("phi" in xtitle) or ("trk" in xtitle):
pass
else:
ytitle += " GeV"
else:
ytitle += " / %s" % (0.05)
fr1 = pad1.DrawFrame(xmin, ymin, xmax, ymax, ';%s;%s' % (xtitle, ytitle))
if do_ratio_plot:
fr1.GetXaxis().SetTitleSize(0)
fr1.GetXaxis().SetLabelSize(0)
xaxis1 = fr1.GetXaxis()
yaxis1 = fr1.GetYaxis()
scale = (1.3 + rsplit)
if not do_ratio_plot:
xaxis1.SetTitleSize(xaxis1.GetTitleSize() * scale)
xaxis1.SetLabelSize(0.9 * xaxis1.GetLabelSize() * scale)
xaxis1.SetTickLength(xaxis1.GetTickLength() * scale)
xaxis1.SetTitleOffset(1.3 * xaxis1.GetTitleOffset() / scale)
xaxis1.SetLabelOffset(1. * xaxis1.GetLabelOffset() / scale)
yaxis1.SetTitleSize(yaxis1.GetTitleSize() * scale)
yaxis1.SetTitleOffset(2.1 * yaxis1.GetTitleOffset() / scale)
yaxis1.SetLabelSize(0.8 * yaxis1.GetLabelSize() * scale)
yaxis1.SetLabelOffset(1. * yaxis1.GetLabelOffset() / scale)
xaxis1.SetNdivisions(510)
yaxis1.SetNdivisions(510)
h_stack.Draw("SAME,HIST")
"""
for s in reversed(signal):
if not s in hists.keys(): continue
if sig_rescale: hists[s].Scale(sig_rescale)
hists[s].Draw("SAME,HIST")
"""
if data: h_data.Draw("SAME")
pad1.SetLogy(log)
pad1.SetLogx(logx)
leg.Draw()
pad1.RedrawAxis()
tlatex = ROOT.TLatex()
tlatex.SetNDC()
tlatex.SetTextSize(0.05)
lx = 0.6 # for ATLAS internal
ly = 0.845
tlatex.SetTextFont(42)
ty = 0.96
th = 0.07
tx = 0.18
lumi = backgrounds[0].estimator.hm.target_lumi / 1000.
textsize = 0.8
if not do_ratio_plot: textsize = 0.8
latex_y = ty - 2. * th
tlatex.DrawLatex(
tx, latex_y,
'#scale[%lf]{#scale[%lf]{#int}L dt = %2.1f fb^{-1}, #sqrt{s} = 13 TeV}'
% (textsize, 0.8 * textsize, lumi))
if label:
latex_y -= 0.06
#for i,line in enumerate(label):
# tlatex.DrawLatex(tx,latex_y-i*0.06,"#scale[%lf]{%s}"%(textsize,line))
tlatex.DrawLatex(tx, latex_y - 0.06,
"#scale[%lf]{%s}" % (textsize, label))
if blind:
line = ROOT.TLine()
line.SetLineColor(ROOT.kBlack)
line.SetLineStyle(2)
line.DrawLine(blind, ymin, blind, ymax)
bltext = ROOT.TLatex()
bltext.SetTextFont(42)
bltext.SetTextSize(0.04)
bltext.SetTextAngle(90.)
bltext.SetTextAlign(31)
bltext.DrawLatex(blind, ymax, 'Blind ')
if do_ratio_plot:
pad2.cd()
fr2 = pad2.DrawFrame(xmin, 0.49, xmax, 1.51,
';%s;Data / Bkg_{SM}' % (xtitle))
xaxis2 = fr2.GetXaxis()
yaxis2 = fr2.GetYaxis()
scale = (1. / rsplit)
yaxis2.SetTitleSize(yaxis2.GetTitleSize() * scale)
yaxis2.SetLabelSize(yaxis2.GetLabelSize() * scale)
yaxis2.SetTitleOffset(2.1 * yaxis2.GetTitleOffset() / scale)
yaxis2.SetLabelOffset(0.4 * yaxis2.GetLabelOffset() * scale)
xaxis2.SetTitleSize(xaxis2.GetTitleSize() * scale)
xaxis2.SetLabelSize(0.8 * xaxis2.GetLabelSize() * scale)
xaxis2.SetTickLength(xaxis2.GetTickLength() * scale)
xaxis2.SetTitleOffset(3.2 * xaxis2.GetTitleOffset() / scale)
xaxis2.SetLabelOffset(2.5 * xaxis2.GetLabelOffset() / scale)
yaxis2.SetNdivisions(510)
xaxis2.SetNdivisions(510)
if logx:
pad2.SetLogx(logx)
xaxis2.SetMoreLogLabels()
else:
pass
if g_tot:
g_tot.Draw("E2")
g_stat.Draw("SAME,E2")
else:
g_stat.Draw("E2")
if data: h_ratio.Draw("SAME")
pad2.RedrawAxis()
print 'saving plot...'
if not log: c.SaveAs("%s.eps" % c.GetName())
else: c.SaveAs("%s_LOG.eps" % c.GetName())
fout = ROOT.TFile.Open(plotsfile, 'UPDATE')
fout.WriteTObject(c)
fout.Close()