pandas.MultiIndex.from_arrays#

classmethod MultiIndex.from_arrays(arrays, sortorder=None, names=<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'])