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pandas.MultiIndex.from_arrays — pandas 3.0.0.dev0+2231.g4f2aa4d2be documentation

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

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'])

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