pandas.Series.swaplevel

Series.swaplevel(i=-2, j=-1, copy=True)[source]

Swap levels i and j in a MultiIndex.

Parameters:
i, j : int, string (can be mixed)

Level of index to be swapped. Can pass level name as string.

Returns:
swapped : Series
.. versionchanged:: 0.18.1

The indexes i and j are now optional, and default to the two innermost levels of the index.

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