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pandas.DataFrame.droplevel — pandas 2.3.1 documentation

DataFrame.droplevel(level, axis=0)[source]#

Return Series/DataFrame with requested index / column level(s) removed.

Parameters:

levelint, str, or list-like

If a string is given, must be the name of a level If list-like, elements must be names or positional indexes of levels.

axis{0 or ‘index’, 1 or ‘columns’}, default 0

Axis along which the level(s) is removed:

• 0 or ‘index’: remove level(s) in column.

• 1 or ‘columns’: remove level(s) in row.

For Series this parameter is unused and defaults to 0.

Returns:

Series/DataFrame

Series/DataFrame with requested index / column level(s) removed.

Examples

>>> df = pd.DataFrame([
...     [1, 2, 3, 4],
...     [5, 6, 7, 8],
...     [9, 10, 11, 12]
... ]).set_index([0, 1]).rename_axis(['a', 'b'])

>>> df.columns = pd.MultiIndex.from_tuples([
...     ('c', 'e'), ('d', 'f')
... ], names=['level_1', 'level_2'])

>>> df
level_1   c   d
level_2   e   f
a b
1 2      3   4
5 6      7   8
9 10    11  12

>>> df.droplevel('a')
level_1   c   d
level_2   e   f
b
2        3   4
6        7   8
10      11  12

>>> df.droplevel('level_2', axis=1)
level_1   c   d
a b
1 2      3   4
5 6      7   8
9 10    11  12

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