pandas.MultiIndex.from_arrays#
- classmethod MultiIndex.from_arrays(arrays, sortorder=None, names=_NoDefault.no_default)[source]#
Convert arrays to MultiIndex.
- Parameters
- arrayslist / sequence of array-likes
Each array-like gives one level’s value for each data point. len(arrays) is the number of levels.
- sortorderint or None
Level of sortedness (must be lexicographically sorted by that level).
- nameslist / sequence of str, optional
Names for the levels in the index.
- Returns
- MultiIndex
See also
MultiIndex.from_tuples
Convert list of tuples to MultiIndex.
MultiIndex.from_product
Make a MultiIndex from cartesian product of iterables.
MultiIndex.from_frame
Make a MultiIndex from a DataFrame.
Examples
>>> arrays = [[1, 1, 2, 2], ['red', 'blue', 'red', 'blue']] >>> pd.MultiIndex.from_arrays(arrays, names=('number', 'color')) MultiIndex([(1, 'red'), (1, 'blue'), (2, 'red'), (2, 'blue')], names=['number', 'color'])