MPF.bgContributionPlot module

Similiar to DataMCRatioPlot(), but also shows the relative contributions of the background processes in each bin in a 3rd pad.

Example

#!/usr/bin/env python

import ROOT
from MPF.bgContributionPlot import BGContributionPlot
from MPF.atlasStyle import setAtlasStyle

setAtlasStyle()
bkg1 = ROOT.TH1F("bkg1", "", 100, -2, 5)
bkg2 = ROOT.TH1F("bkg2", "", 100, -2, 5)
data = ROOT.TH1F("data", "", 100, -2, 5)
signal = ROOT.TH1F("signal", "", 100, -2, 5)

bkg1.FillRandom("gaus")
bkg1.Scale(0.5)
bkg2.FillRandom("gaus")
bkg2.Scale(0.5)
data.FillRandom("gaus")
signal.FillRandom("landau")

p = BGContributionPlot(xTitle="x")
p.registerHist(bkg1, style="background", process="Bkg 1")
p.registerHist(bkg2, style="background", process="Bkg 2")
p.registerHist(data, style="data", process="Data")
p.registerHist(signal, style="signal", process="Signal")
p.saveAs("plot.pdf")
_images/bgContributionPlot.png
class MPF.bgContributionPlot.BGContributionPlot(bgContributionPadTitle='Contributions', noData=False, ratioTitle='Data / MC', **kwargs)[source]

Bases: MPF.plotStore.PlotStore

Parameters:
  • noData – Don’t show a data/MC ratio
  • bgContributionPadTitle – Title on the pad showing the relative contributions

Overwrites the defaults for the following PlotStore() parameters:

Parameters:
  • ignoreNumErrors – default: False
  • ignoreDenErrors – default: True
  • ratioMode – default: “rawpois”
  • ratioUp – default: 2.25
  • ratioDown – default: 0.25
  • ratioTitle – Title for the ratio pad if data/MC ratio is shown (default: “Data / MC”)

For further options see PlotStore()

saveAs(path, **kwargs)[source]

Save the canvas. Arguments are passed to MPF.canvas.Canvas.saveAs()