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Python Pandas - 以毫秒频率对 TimeDeltaIndex 对象执行 ceil 操作

2026-06-03 1 花语

要以毫秒频率对TimeDeltaIndex执行ceil操作,请使用该方法。对于毫秒频率,使用值为msfreq参数。TimeDeltaIndex.ceil()

首先,导入所需的库-

import pandas as pd

创建一个TimeDeltaIndex对象。我们已经使用data参数设置了类似timedelta的数据-

tdIndex = pd.TimedeltaIndex(data =[4 day 8h 20min 35us 45ns, +17:42:19.999999, 9 day 3h 08:16:02.000055, +22:35:25.000075])

显示TimedeltaIndex-

print("TimedeltaIndex...\n", tdIndex)

以毫秒为频率对TimeDeltaIndex日期进行Ceil操作。对于毫秒频率,我们使用了ms-

print("\nPerforming Ceil operation with milliseconds frequency...\n", tdIndex.ceil(freq=ms))

示例

以下是代码-

import pandas as pd #CreateaTimeDeltaIndexobject # We have set the timedelta-like data using the data parameter tdIndex = pd.TimedeltaIndex(data =[4 day 8h 20min 35us 45ns, +17:42:19.999999, 9 day 3h 08:16:02.000055, +22:35:25.000075]) #displayTimedeltaIndex print("TimedeltaIndex...\n", tdIndex) #ReturnadataframeofthecomponentsofTimeDeltas print("\nThe Dataframe of the components of TimeDeltas...\n", tdIndex.components) #CeiloperationonTimeDeltaIndexdatewithmillisecondsfrequency # For milliseconds frequency, we have used ms print("\nPerforming Ceil operation with milliseconds frequency...\n", tdIndex.ceil(freq=ms))输出结果

这将产生以下代码-

TimedeltaIndex... TimedeltaIndex([4 days 08:20:00.000035045, 0 days 17:42:19.999999, 9 days 11:16:02.000055, 0 days 22:35:25.000075], dtype=timedelta64[ns], freq=None) The Dataframe of the components of TimeDeltas... days hours minutes seconds milliseconds microseconds nanoseconds 0 4 8 20 0 0 35 45 1 0 17 42 19 999 999 0 2 9 11 16 2 0 55 0 3 0 22 35 25 0 75 0 Performing Ceil operation with milliseconds frequency... TimedeltaIndex([4 days 08:20:00.001000, 0 days 17:42:20, 9 days 11:16:02.001000, 0 days 22:35:25.001000], dtype=timedelta64[ns], freq=None)