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Python Pandas - Create a PeriodIndex and set frequency
To create a PeriodIndex, use the pandas.PeriodIndex() method. To set the frequency, use the freq parameter.
At first, import the required libraries −
import pandas as pd
Create a PeriodIndex object. PeriodIndex is an immutable ndarray holding ordinal values indicating regular periods in time. We have set the frequency using the "freq" parameter −
periodIndex = pd.PeriodIndex(['2021-09-25', '2020-10-30', '2020-11-20'], freq="D")
Display PeriodIndex object −
print("PeriodIndex...\n", periodIndex)Example
Following is the code −
import pandas as pd
# Create a PeriodIndex object
# PeriodIndex is an immutable ndarray holding ordinal values indicating regular periods in time
# We have set the frequency using the "freq" parameter
periodIndex = pd.PeriodIndex(['2021-09-25', '2020-10-30', '2020-11-20'], freq="D")
# Display PeriodIndex object
print("PeriodIndex...\n", periodIndex)
# Display day from the PeriodIndex object
print("\nThe number of days from the PeriodIndex...\n", periodIndex.day)Output
This will produce the following code −
PeriodIndex... PeriodIndex(['2021-09-25', '2020-10-30', '2020-11-20'], dtype='period[D]') The number of days from the PeriodIndex... Int64Index([25, 30, 20], dtype='int64')
Updated on: 20-Oct-2021
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