Python Pandas - Get location and sliced index for requested label/ level in a MultiIndex

To get location and sliced index for requested label/ level in a MultiIndex, use the get_loc_level() method in Pandas.

At first, import the required libraries −

import pandas as pd

MultiIndex is a multi-level, or hierarchical, index object for pandas objects −

multiIndex = pd.MultiIndex.from_arrays([list('pqrrss'), list('strvwx')],names=['One', 'Two'])

Display the MultiIndex −

print("The MultiIndex...\n",multiIndex)

Get the location and sliced index −

print("\nGet the location and sliced index...\n",multiIndex.get_loc_level('r'))

Example

Following is the code −

import pandas as pd

# MultiIndex is a multi-level, or hierarchical, index object for pandas objects
multiIndex = pd.MultiIndex.from_arrays([list('pqrrss'), list('strvwx')],names=['One', 'Two'])

# display the MultiIndex
print("The MultiIndex...\n",multiIndex)

# get the levels in MultiIndex
print("\nThe levels in MultiIndex...\n",multiIndex.levels)

# Get the location and sliced index
print("\nGet the location and sliced index...\n",multiIndex.get_loc_level('r'))

Output

This will produce the following output −

The MultiIndex...
MultiIndex([('p', 's'),
            ('q', 't'),
            ('r', 'r'),
            ('r', 'v'),
            ('s', 'w'),
            ('s', 'x')],
            names=['One', 'Two'])

The levels in MultiIndex...
   [['p', 'q', 'r', 's'], ['r', 's', 't', 'v', 'w', 'x']]

Get the location and sliced index...
   (slice(2, 4, None), Index(['r', 'v'], dtype='object', name='Two'))

AmitDiwan

Published on 19-Oct-2021 08:16:13

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