Python Pandas - Return vector of label values using integer position of the level in the MultiIndex

To return vector of label values using integer position of the level in the MultiIndex, use the MultiIndex.get_level_values() method in Pandas. Set the level as an argument.

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 level values at level 0 −

print("\nLevel values at level 0...\n",multiIndex.get_level_values(0))

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 level values at level 0
print("\nLevel values at level 0...\n",multiIndex.get_level_values(0))

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']]

Level values at level 0...
   Index(['p', 'q', 'r', 'r', 's', 's'], dtype='object', name='One')