Python Pandas - 從 PeriodIndex 物件中獲取時間段月份數
要從 PeriodIndex 物件獲取時間段的月份數,請使用 PeriodIndex.month 屬性。
首先,匯入必需的庫 −
import pandas as pd
建立一個 PeriodIndex 物件 −
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 頻率 −
print("\nPeriodIndex frequency object...\n", periodIndex.freq)
從 PeriodIndex 物件中顯示月份數。月份顯示為 1 月=1、2 月=2 ... 12 月=12 −
print("\nThe month number from the PeriodIndex object...\n", periodIndex.month)
示例
以下為程式碼 −
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 month number from the PeriodIndex object # The month id displayed as January=1, February=2 ... December=12. print("\nThe month number from the PeriodIndex object...\n", periodIndex.month)
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 month number from the PeriodIndex object... Int64Index([9, 10, 7, 6], dtype='int64')
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