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Python Pandas - Get a tuple with the length of each level from MultiIndex
To get a tuple with the length of each level from MultiIndex, use the MultiIndex.levshape property in Pandas.
At first, import the required libraries −
import pandas as pd
MultiIndex is a multi-level, or hierarchical, index object for pandas objects. Create arrays −
arrays = [[1, 2, 3, 4, 5], ['John', 'Tim', 'Jacob', 'Chris', 'Keiron']]
The "names" parameter sets the names for each of the index levels. The from_arrays() uis used to create a Multiindex −
multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))Get a tuple with the length of each level −
print("\nThe tuple with the length of each level in a Multi-index...\n",multiIndex.levshape)Example
Following is the code −
import pandas as pd
# MultiIndex is a multi-level, or hierarchical, index object for pandas objects
# Create arrays
arrays = [[1, 2, 3, 4, 5], ['John', 'Tim', 'Jacob', 'Chris', 'Keiron']]
# The "names" parameter sets the names for each of the index levels
# The from_arrays() uis used to create a Multiindex
multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))
# display the Multiindex
print("The Multi-index...\n",multiIndex)
# get the integer number of levels in Multiindex
print("\nThe number of levels in Multi-index...\n",multiIndex.nlevels)
# get the levels in Multiindex
print("\nThe levels in Multi-index...\n",multiIndex.levels)
# get a tuple with the length of each level
print("\nThe tuple with the length of each level in a Multi-index...\n",multiIndex.levshape)Output
This will produce the following output −
The Multi-index...
MultiIndex([(1, 'John'),
(2, 'Tim'),
(3, 'Jacob'),
(4, 'Chris'),
(5, 'Keiron')],
names=['ranks', 'student'])
The number of levels in Multi-index...
2
The levels in Multi-index...
[[1, 2, 3, 4, 5], ['Chris', 'Jacob', 'John', 'Keiron', 'Tim']]
The tuple with the length of each level in a Multi-index...
(5, 5)
Updated on: 19-Oct-2021
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