Exercise 4: Plotting a derived variable

(10 minutes)

Make a histogram of the new n-tuple variable pt. Don’t forget to include error bars and to label the axes; remember that the momenta are in GeV.

Hint

Are you getting a message about pt not being defined? Remember that pt was defined for our “new” n-tuple definept, not the original dataframe.

xkcd newton_and_leibniz — Figure 49: https://xkcd.com/626/ by Randall Munroe