Found 10476 Articles for Python

Python Pandas - Create a DataFrame with the levels of the MultiIndex as columns

AmitDiwan
Updated on 19-Oct-2021 07:30:34

1K+ Views

To create a DataFrame with the levels of the MultiIndex as columns, use the to_frame() method in Pandas.At first, import the required libraries −import pandas as pdMultiIndex is a multi-level, or hierarchical, index object for pandas objects. Create arrays −arrays = [[1, 2, 3, 4], ['John', 'Tim', 'Jacob', 'Chris']] The "names" parameter sets the names for each of the index levels. The from_arrays() is used to create a MultiIndex −multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))Create a DataFrame with the levels of the MultiIndex as columns using to_frame() −dataFrame = multiIndex.to_frame() ExampleFollowing is the code −import pandas as pd # MultiIndex ... Read More

Python Pandas - Convert a MultiIndex to an Index of Tuples containing the level values

AmitDiwan
Updated on 19-Oct-2021 07:20:26

2K+ Views

To convert a MultiIndex to an Index of Tuples containing the level values, use the MultiIndex.to_flat_index() method.At first, import the required libraries −import pandas as pdMultiIndex is a multi-level, or hierarchical, index object for pandas objects. Create arrays −arrays = [[1, 2, 3, 4], ['John', 'Tim', 'Jacob', 'Chris']] The "names" parameter sets the names for each of the index levels. The from_arrays() is used to create a MultiIndex −multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))Convert the MultiIndex −print("Converting a MultiIndex to an Index of Tuples containing the level values...", multiIndex.to_flat_index())ExampleFollowing is the code −import pandas as pd # MultiIndex is a ... Read More

Python Pandas - Set only a single new specific level using the level name in a MultiIndex

AmitDiwan
Updated on 19-Oct-2021 07:16:51

203 Views

To set only a single new specific level using the level name in a MultiIndex, use the MultiIndex.set_levels() method. The parameter level is used to set the level name.At first, import the required libraries −import pandas as pdMultiIndex is a multi-level, or hierarchical, index object for pandas objects. Create arrays −arrays = [[1, 2, 3, 4], ['John', 'Tim', 'Jacob', 'Chris']] The "names" parameter sets the names for each of the index levels. The from_arrays() is used to create a MultiIndex −multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))Set the level in MultiIndex. We have set a new single specific level using the level ... Read More

Python Pandas - Set only a single new specific level in a MultiIndex

AmitDiwan
Updated on 19-Oct-2021 07:13:57

819 Views

To set only a single new specific level in a MultiIndex, use the MultiIndex.set_levels() method with parameter level. At first, import the required libraries −import pandas as pdMultiIndex is a multi-level, or hierarchical, index object for pandas objects. Create arrays −arrays = [[1, 2, 3, 4], ['John', 'Tim', 'Jacob', 'Chris']] The "names" parameter sets the names for each of the index levels. The from_arrays() is used to create a MultiIndex −multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))We have set a new single specific level using the "level" parameter −print("Set a new level in Multi-index...", multiIndex.set_levels(['p', 'q', 'r', 's'], level = 0))ExampleFollowing is ... Read More

Python Pandas - Set levels in a MultiIndex

AmitDiwan
Updated on 19-Oct-2021 07:11:01

935 Views

To set levels in a MultiIndex, use the MultiIndex.set_levels() method in Pandas. At first, import the required libraries −import pandas as pdMultiIndex is a multi-level, or hierarchical, index object for pandas objects. Create arrays:arrays = [[1, 2, 3, 4], ['John', 'Tim', 'Jacob', 'Chris']] The "names" parameter sets the names for each of the index levels. The from_arrays() is used to create a MultiIndex −multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))Set the levels in MultiIndex −print("Set new levels in Multi-index...", multiIndex.set_levels([['p', 'q', 'r', 's'], [10, 20, 30, 40]]))ExampleFollowing is the code −import pandas as pd # MultiIndex is a multi-level, or hierarchical, ... Read More

Python Pandas - Get a tuple with the length of each level from MultiIndex

AmitDiwan
Updated on 19-Oct-2021 07:03:05

352 Views

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 pdMultiIndex 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("The tuple with the length of each level in a Multi-index...", multiIndex.levshape)ExampleFollowing is the code −import ... Read More

Python Pandas - Get the Integer number of levels in this MultiIndex

AmitDiwan
Updated on 19-Oct-2021 07:00:25

292 Views

To get the Integer number of levels in this MultiIndex, use the MultiIndex.nlevels property in Pandas. At first, import the required libraries −import pandas as pdMultiIndex 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 the integer number of levels in Multiindex −print("The number of levels in Multi-index...", multiIndex.nlevels) ExampleFollowing is the code −import pandas as pd # MultiIndex ... Read More

Python Pandas - Get the codes (location of each label) in MultiIndex

AmitDiwan
Updated on 19-Oct-2021 06:57:04

309 Views

To get the codes (location of each label) in MultiIndex, use the MultiIndex.codes property in Pandas. At first, import the required libraries −import pandas as pdMultiIndex 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() is used to create a Multiindex −multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))Get the location of each label in Multiindex −print("The location of each label in Multi-index...", multiIndex.codes) ExampleFollowing is the code −import pandas as pd # ... Read More

Python Pandas - Get the levels in MultiIndex

AmitDiwan
Updated on 19-Oct-2021 06:54:04

2K+ Views

To get the levels in MultiIndex, use the MultiIndex.levels property in Pandas. At first, import the required libraries −import pandas as pdMultiIndex 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() is used to create a Multiindex −multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))Get the levels in Multiindex −print("The levels in Multi-index...", multiIndex.levels) ExampleFollowing is the code −import pandas as pd # MultiIndex is a multi-level, or hierarchical, index object for pandas ... Read More

Python Pandas - Get the Names of levels in MultiIndex

AmitDiwan
Updated on 19-Oct-2021 06:50:36

3K+ Views

To get the Names of levels in MultiIndex, use the MultiIndex.names property in Pandas. At first, import the required libraries −import pandas as pdMultiIndex 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() is used to create a Multiindex −multiIndex = pd.MultiIndex.from_arrays(arrays, names=('ranks', 'student'))Get the names of levels in Multiindex −print("The names of levels in Multi-index...", multiIndex.names) ExampleFollowing is the code −import pandas as pd # MultiIndex is a multi-level, ... Read More

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