Python Pandas - 对具有微秒频率的 TimeDeltaIndex 对象执行向上取整操作
要对具有微秒频率的 TimeDeltaIndex 执行向上取整操作,请使用 **TimeDeltaIndex.ceil()** 方法。对于微秒频率,请使用 **freq** 参数,其值为 **‘us’**。
首先,导入所需的库 -
import pandas as pd
创建一个 TimeDeltaIndex 对象。我们使用 'data' 参数设置了类似时间增量的数据 -
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)
对具有微秒频率的 TimeDeltaIndex 日期执行向上取整操作。对于微秒频率,我们使用了 'us' -
print("\nPerforming Ceil operation with microseconds frequency...\n", tdIndex.ceil(freq='us'))
示例
以下是代码 -
import pandas as pd # Create a TimeDeltaIndex object # 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']) # 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) # Ceil operation on TimeDeltaIndex date with microseconds frequency # For microseconds frequency, we have used 'us' print("\nPerforming Ceil operation with microseconds frequency...\n", tdIndex.ceil(freq='us'))
输出
这将生成以下代码 -
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 microseconds frequency... TimedeltaIndex(['4 days 08:20:00.000036', '0 days 17:42:19.999999', '9 days 11:16:02.000055', '0 days 22:35:25.000075'], dtype='timedelta64[ns]', freq=None)
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