Introduction
Series
What DataFrames are
DataFrame columns
DataFrame rows
20. Resetting the index
Filtering rows and columns
Filtering data frames
Sorting rows
Summary

## Instruction

Great. To return to the default integer index, you can use the following code:

hospitals = hospitals.reset_index(drop=True)

If we provide reset_index() without any arguments or with the drop=False, it will add back the old index column (in our case, the Phone Number column). We don't want that additional column, so we added drop=True inside the parentheses.

## Exercise

Reset the index of eu_states. Keep the Country column in the DataFrame.

### Stuck? Here's a hint!

Use

reset_index(drop=False)
on eu_states.