Python Pandas - 從 PeriodIndex 物件顯示日期的季度
要從 PeriodIndex 物件中顯示日期的季度,請使用 PeriodIndex.quarter 屬性。
首先,匯入所需庫 −
import pandas as pd
建立一個 PeriodIndex 物件。PeriodIndex 是一個不變的 ndarray,用於儲存表示常規時間段的有序值 −
periodIndex = pd.PeriodIndex(['2021-09-25 07:30:35', '2019-10-30 04:15:45', '2021-07-15 02:55:15', '2022-06-25 09:40:55'], freq="T")
顯示 PeriodIndex 物件 −
print("PeriodIndex...\n", periodIndex)
從 PeriodIndex 物件顯示日期的季度 −
print("\nThe quarter of the date from the PeriodIndex object...\n", periodIndex.quarter)示例
以下是程式碼 −
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 07:30:35', '2019-10-30 04:15:45',
'2021-07-15 02:55:15', '2022-06-25 09:40:55'], freq="T")
# Display PeriodIndex object
print("PeriodIndex...\n", periodIndex)
# Display PeriodIndex frequency
print("\nPeriodIndex frequency object...\n", periodIndex.freq)
# Display PeriodIndex frequency as string
print("\nPeriodIndex frequency object as a string...\n", periodIndex.freqstr)
# Display the quarter of the date from the PeriodIndex object
print("\nThe quarter of the date from the PeriodIndex object...\n", periodIndex.quarter)輸出
將生成以下程式碼 −
PeriodIndex... PeriodIndex(['2021-09-25 07:30', '2019-10-30 04:15', '2021-07-15 02:55', '2022-06-25 09:40'], dtype='period[T]') PeriodIndex frequency object... <Minute> PeriodIndex frequency object as a string... T The quarter of the date from the PeriodIndex object... Int64Index([3, 4, 3, 2], dtype='int64')
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