taking difference between two histograms and plotting it. @author Paul F. Kunz <*****@*****.**> """ import random from time import sleep from load_hippo import app, canvas from hippo import Display, NTuple, NTupleController # Create static histogram and add it to canvas. sthist = Display ( "Static Histogram" ) sthist.setTitle ( "Gaussian Distribution (static hist)" ) sthist.setLabel ( 'x', 'X' ) sthist.setRange ( 'x', 0, 100) sthist.setBinWidth ( 'x', 1. ) canvas.addDisplay ( sthist ) # Create second static histogram and add it to canvas sthists = Display ( "Static Histogram" ) sthists.setTitle ( "Gaussian Distribution (low statistics)" ) sthists.setLabel ( 'x', 'X' ) sthists.setRange ( 'x', 0, 100) sthists.setBinWidth ( 'x', 1. ) canvas.addDisplay ( sthists ) # Create empty NTuple and set the column label. # Setting the column labels sets the number of columns ntuple = NTuple ( )
