This tutorial is based on the ROOT files generated in the first step.

There are three important plotting modules in HarryPlotter: PlotRoot, PlotMpl and ExportRoot. The first two generate plots using either ROOT or matplotlib functionallity. The corresponding options and settings are compared in this tutorial side-by-side. The latter module is used to write ROOT objects, that have been generated during a HarryPlotter run into ROOT files.

• Filled 1D histogram

   harry.py --plot-modules PlotRoot -m HIST -i gaussians3.root -f gaussians1 -x var0
   harry.py --plot-modules PlotMpl -m bar -i gaussians3.root -f gaussians1 -x var0

  

• 1D histogram as line

   harry.py --plot-modules PlotRoot -m LINE -i gaussians3.root -f gaussians1 -x var0
   # harry.py --plot-modules PlotMpl <options> -i gaussians3.root -f gaussians1 -x var0

  

• 1D histogram with points and error bars

   harry.py --plot-modules PlotRoot -m E -i gaussians3.root -f gaussians1 -x var0
   harry.py --plot-modules PlotMpl -m o -i gaussians3.root -f gaussians1 -x var0

  

• Stacking of 1D histograms

  Stacking of histograms is controlled via the option --stacks, which is a plotting and not an input option. For each object to be plotted it takes an arbitrary string naming the stack(s). Objects with the same stack name are stacked. This option is independent of the actual plotting backend, namely PlotRoot and PlotMpl.

   harry.py --stacks stack1 stack1 stack1 stack2 stack3 -i gaussians3.root -f gaussians1 -x var0 --scale-factors 0.5 0.3 0.2 1.0 0.4 --plot-modules PlotRoot -m HIST HIST HIST E LINE --labels "Scale 0.5" "Scale 0.3" "Scale 0.2" "Scale 1.0" "Scale 0.4" --legend-markers F F F ELP L --legend 0.2 0.6 0.5 0.9
   harry.py --stacks stack1 stack1 stack1 stack2 stack3 -i gaussians3.root -f gaussians1 -x var0 --scale-factors 0.5 0.3 0.2 1.0 0.4 --plot-modules PlotMpl -m bar bar bar o o --labels "Scale 0.5" "Scale 0.3" "Scale 0.2" "Scale 1.0" "Scale 0.4" --legend best

  

• 2D histograms

   harry.py --plot-modules PlotRoot -m COLZ -i gaussians3.root -f gaussians1 -x var0 -y var1
   harry.py --plot-modules PlotMpl --colormap -i gaussians3.root -f gaussians1 -x var0 -y var1

  

• 1D Graphs as points with error bars

   harry.py --plot-modules PlotRoot -m P -i gaussians3.root -f gaussians1 -x Entry$:0.3 -y "var0:sqrt(abs(var0))" --tree-draw-options TGraphErrors -w "Entry$ < 20"
   harry.py --plot-modules PlotMpl -m o -i gaussians3.root -f gaussians1 -x Entry$:0.3 -y "var0:sqrt(abs(var0))" --tree-draw-options TGraphErrors -w "Entry$ < 20"

  

• 1D Graphs as lines

   harry.py --plot-modules PlotRoot -m L -i gaussians3.root -f gaussians1 -x Entry$ -y var0 --tree-draw-options TGraph -w "Entry$ < 20"
   harry.py --plot-modules PlotMpl --line-styles - -i gaussians3.root -f gaussians1 -x Entry$ -y var0 --tree-draw-options TGraph -w "Entry$ < 20"

  

• 1D functions as lines

   harry.py --plot-modules PlotRoot -m L --input-modules InputInteractive -x "x^2" --x-bins 100,-10,10
   # harry.py --plot-modules PlotMpl <options> --input-modules InputInteractive -x "x^2" --x-bins 100,-10,10

  

• 2D functions

   harry.py --plot-modules PlotRoot -m COLZ --input-modules InputInteractive -x "x*y" --x-bins 100,-10,10 --y-bins 100,-10,10
   # harry.py --plot-modules PlotMpl <options> --input-modules InputInteractive -x "x*y" --x-bins 100,-10,10 --y-bins 100,-10,10