Group orders by city and item and return the total cups — a Series with a Multi…
pandas · from MultiIndex, stack and unstack
MultiIndex.unstack().stack().xs()swaplevelget_level_valuesPutting the kettle on…
Starting up…
Exercise 1
Group orders by city and item and return the total cups — a Series with a MultiIndex.
your answer
stuck? the lesson behind it
MultiIndex, stack and unstack
An index whose labels are tuples — and two methods for moving levels sideways.