Python Pandas - 根據 PeriodIndex 物件獲取時間段的小時
若要根據 PeriodIndex 物件獲取時間段的小時,請使用 PeriodIndex.hour 屬性。
首先,匯入所需的庫 -
import pandas as pd
建立一個 PeriodIndex 物件。PeriodIndex 是一個不可變的 ndarray,包含指示定期時間的順序值。我們使用 "freq" 引數設定了頻率 -
periodIndex = pd.PeriodIndex(['2021-09-25 07:50:35', '2019-10-30 04:35:45', '2021-07-15 02:25:15', '2022-06-25 09:20:55'], freq="T")
顯示 PeriodIndex 物件 -
print("PeriodIndex...\n", periodIndex)
從 PeriodIndex 物件顯示小時 -
print("\nThe hour from the PeriodIndex object...\n", periodIndex.hour)
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 07:50:35', '2019-10-30 04:35:45', '2021-07-15 02:25:15', '2022-06-25 09:20:55'], 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 hour from the PeriodIndex object print("\nThe hour from the PeriodIndex object...\n", periodIndex.hour)
輸出
這將生成以下程式碼 -
PeriodIndex... PeriodIndex(['2021-09-25 07:50', '2019-10-30 04:35', '2021-07-15 02:25', '2022-06-25 09:20'], dtype='period[T]') PeriodIndex frequency object... <Minute> PeriodIndex frequency object as a string... T The hour from the PeriodIndex object... Int64Index([7, 4, 2, 9], dtype='int64')
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