pandas.MultiIndex.swaplevel#
- 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.
See also
Series.swaplevel
Swap levels i and j in a MultiIndex.
DataFrame.swaplevel
Swap levels i and j in a MultiIndex on a particular axis.
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')], )