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Customization of the describe method for pandas dataframe; prints descriptions of all columns (grouped by numeric, datetime, boolean, and others) and DatetimeIndex (if any)
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import numpy as np | |
import pandas as pd | |
from pandas.core.dtypes.common import ( | |
is_numeric_dtype, is_datetime64_dtype, is_bool_dtype | |
) | |
from pandas.core.indexes.datetimes import DatetimeIndex | |
def describe_by_type(dataframe): | |
""" | |
prints descriptions of all columns (grouped by numeric, datetime, boolean, | |
and others) and DatetimeIndex (if any) | |
:param dataframe: a pandas DataFrame | |
:return: None | |
""" | |
boolean, numeric, datetime, other = False, False, False, False | |
for column in dataframe.columns: | |
if is_bool_dtype(dataframe[column]): | |
boolean = True | |
elif is_numeric_dtype(dataframe[column]): | |
numeric = True | |
elif is_datetime64_dtype(dataframe[column]): | |
datetime = True | |
else: | |
other = True | |
# describe datetime columns and DatetimeIndex (if any) | |
if isinstance(dataframe.index, DatetimeIndex): | |
print(pd.Series(dataframe.index).describe()) | |
print('\n') | |
if datetime: | |
print(dataframe.describe(include=['datetime'])) | |
print('\n') | |
# describe numeric columns (if any) | |
if numeric: | |
print(dataframe.describe()) | |
print('\n') | |
# describe boolean columns (if any) | |
if boolean: | |
print(dataframe.describe(include=[np.bool])) | |
print('\n') | |
# describe other columns (if any) | |
if other: | |
print(dataframe.describe(exclude=[np.number, np.datetime64, np.bool])) | |
print('\n') |
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