Python Pandas - 如何對頻率為毫秒的 TimeDeltaIndex 進行舍入
要對頻率為毫秒的 TimeDeltaIndex 進行舍入,請使用 TimeDeltaIndex.round() 方法。對於毫秒頻率,請使用 freq 引數,其值設為 ‘ms’。
首先,匯入所需的庫 −
import pandas as pd
建立一個 TimeDeltaIndex 物件。我們使用 'data' 引數設定類似 timedelta 的資料 −
tdIndex = pd.TimedeltaIndex(data =['10 day 5h 2 min 3us 10ns', '+22:39:19.999999', '2 day 4h 03:08:02.000045', '+07:20:32.261811624'])
顯示 TimedeltaIndex −
print("TimedeltaIndex...\n", tdIndex)對 TimeDeltaIndex 日期使用毫秒頻率的舍入操作。針對毫秒頻率,我們使用了 'ms' −
print("\nPerforming round operation with milliseconds frequency...\n",
tdIndex.round(freq='ms'))示例
以下是程式碼 −
import pandas as pd
# Create a TimeDeltaIndex object
# We have set the timedelta-like data using the 'data' parameter
tdIndex = pd.TimedeltaIndex(data =['10 day 5h 2 min 3us 10ns', '+22:39:19.999999',
'2 day 4h 03:08:02.000045', '+07:20:32.261811624'])
# display TimedeltaIndex
print("TimedeltaIndex...\n", tdIndex)
# Return a dataframe of the components of TimeDeltas
print("\nThe Dataframe of the components of TimeDeltas...\n", tdIndex.components)
# Round operation on TimeDeltaIndex date with milliseconds frequency
# For milliseconds frequency, we have used 'ms'
print("\nPerforming round operation with milliseconds frequency...\n",
tdIndex.round(freq='ms'))輸出
將生成以下程式碼 −
TimedeltaIndex... TimedeltaIndex(['10 days 05:02:00.000003010', '0 days 22:39:19.999999', '2 days 07:08:02.000045', '0 days 07:20:32.261811624'], dtype='timedelta64[ns]', freq=None) The Dataframe of the components of TimeDeltas... days hours minutes seconds milliseconds microseconds nanoseconds 0 10 5 2 0 0 3 10 1 0 22 39 19 999 999 0 2 2 7 8 2 0 45 0 3 0 7 20 32 261 811 624 Performing round operation with milliseconds frequency... TimedeltaIndex([ '10 days 05:02:00', '0 days 22:39:20', '2 days 07:08:02', '0 days 07:20:32.262000'], dtype='timedelta64[ns]', freq=None)
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