Exercise

Stacking & unstacking II

You are now going to continue working with the users DataFrame. As always, first explore it in the IPython Shell to see the layout and note the index.

Your job in this exercise is to unstack and then stack the 'city' level, as you did previously for 'weekday'. Note that you won't get the same DataFrame.

Instructions

100 XP

Define a DataFrame bycity with the 'city' level of users unstacked.
Print the bycity DataFrame to see the new data layout. This has been done for you.
Stack bycity by 'city' and print it to check if you get the same layout as the original users DataFrame.

Take Hint (-30 XP)