def stackinputs(file, variable, processes, **kwargs):
"""Stack histograms from ROOT file.
file: TFile or TDirectory object
variable: Variables object
processes: list of strings (name of processes)
e.g.
stackinputs(file,variable,['ZTT','TTT','W','QCD','data_obs'])
"""
text = kwargs.get('text', None)
tag = kwargs.get('tag', "")
groups = kwargs.get('group', []) # e.g. [(['^TT','ST'],'Top')]
dname = kwargs.get('dname', None) # directory ('bin') name
pname = kwargs.get('save', "stack$TAG.png") # save as image file
wname = kwargs.get('write', "stack$TAG") # write to file
style = kwargs.get('style', False) # write style to file
exphists = []
datahist = None
tdir = ensureTDirectory(file, dname, cd=True) if dname else file
if style:
gStyle.Write(
'style',
TH1.kOverwrite) # write current TStyle object to reproduce plots
for process in processes:
hname = process
hist = gethist(tdir, process, fatal=False, warn=False)
if not hist:
LOG.warning(
"stackinputs: Could not find %r in %s. Skipping stacked plot..."
% (process, tdir.GetPath()))
return
hist.SetDirectory(0)
hist.SetLineColor(kBlack)
hist.SetFillStyle(1001) # assume fill color is already correct
if process == 'data_obs':
datahist = hist
else:
exphists.append(hist)
for group in groups:
grouphists(exphists, *group, replace=True, regex=True, verb=0)
stack = Stack(variable, datahist, exphists)
stack.draw()
stack.drawlegend(ncols=2, twidth=0.9)
if text:
stack.drawtext(text)
if pname:
pname = repkey(pname, TAG=tag)
stack.saveas(pname, ext=['png'])
if wname:
wname = repkey(wname, TAG=tag)
stack.canvas.Write(wname, TH1.kOverwrite)
stack.close()
def plotinputs(fname, varprocs, observables, bins, **kwargs):
"""Plot histogram inputs from ROOT file for datacards, and write to ROOT file.
fname: filename pattern of ROOT file
varprocs: dictionary for systematic variation to list of processes,
e.g. { 'Nom': ['ZTT','TTT','W','QCD','data_obs'],
'TESUp': ['ZTT','TTT'], 'TESDown': ['ZTT','TTT'] }
observables: list of Variables objects
bins: list of Selection objects
"""
#LOG.header("plotinputs")
tag = kwargs.get('tag', "")
pname = kwargs.get('pname', "$OBS_$BIN$TAG.png")
outdir = kwargs.get('outdir', 'plots')
text = kwargs.get('text', "$BIN")
groups = kwargs.get('group',
[]) # add processes together into one histogram
verbosity = kwargs.get('verb', 0)
ensuredir(outdir)
print ">>>\n>>> " + color(" plotting... ", 'magenta', bold=True, ul=True)
for obs in observables:
obsname = obs.filename
ftag = tag + obs.tag
fname_ = repkey(fname, OBS=obsname, TAG=ftag)
file = ensureTFile(fname_, 'UPDATE')
for set, procs in varprocs.iteritems(
): # loop over processes with variation
if set == 'Nom':
systag = "" # no systematics tag for nominal
procs_ = procs[:]
else:
systag = '_' + set # systematics tag for variation, e.g. '_TESUp'
procs_ = [
(p + systag if p in procs else p) for p in varprocs['Nom']
] # add tag to varied processes
for selection in bins:
if not obs.plotfor(selection): continue
obs.changecontext(selection)
bin = selection.filename
text_ = repkey(
text, BIN=selection.title) # extra text in plot corner
tdir = ensureTDirectory(file, bin,
cd=True) # directory with histograms
if set == 'Nom':
gStyle.Write(
'style', TH1.kOverwrite
) # write current TStyle object to reproduce plots
# STACKS
pname_ = repkey(pname, OBS=obsname, BIN=bin,
TAG=ftag + systag) # image file name
wname = "stack" + systag # name in ROOT file
stackinputs(tdir,
obs,
procs_,
group=groups,
save=pname_,
write=wname,
text=text_)
# VARIATIONS
if 'Down' in set:
systag_ = systag.replace(
'Down', '') # e.g.'_TES' without 'Up' or 'Down' suffix
pname_ = repkey(pname,
OBS=obsname,
BIN=bin,
TAG=ftag + "_$PROC" +
systag) # image file name
wname = "plot_$PROC" + systag # name in ROOT file
comparevars(tdir,
obs,
procs,
systag_,
save=pname_,
write=wname,
text=text_)
file.Close()