pandas.MultiIndex.swaplevel — pandas 2.2.3 documentation (original) (raw)

MultiIndex.swaplevel(i=-2, j=-1)[source]#

Swap level i with level j.

Calling this method does not change the ordering of the values.

Parameters:

iint, str, default -2

First level of index to be swapped. Can pass level name as string. Type of parameters can be mixed.

jint, str, default -1

Second level of index to be swapped. Can pass level name as string. Type of parameters can be mixed.

Returns:

MultiIndex

A new MultiIndex.

Examples

mi = pd.MultiIndex(levels=[['a', 'b'], ['bb', 'aa']], ... codes=[[0, 0, 1, 1], [0, 1, 0, 1]]) mi MultiIndex([('a', 'bb'), ('a', 'aa'), ('b', 'bb'), ('b', 'aa')], ) mi.swaplevel(0, 1) MultiIndex([('bb', 'a'), ('aa', 'a'), ('bb', 'b'), ('aa', 'b')], )