Python Exercise 6: Plotting a derived variable (10 minutes)

Revise AnalyzeVariables.py to make a histogram of the variable pt. Don’t forget to label the axes; remember that the momenta are in GeV.

Note

If you want to figure out what the bin limits of the histogram should be, I’ll permit you to “cheat” and use the following command interactively:

tree1.Draw("sqrt(px*px + py*py)")