Python Pandas - 如何对频率为毫秒的 TimeDeltaIndex 进行舍入
要对频率为毫秒的 TimeDeltaIndex 进行舍入,请使用 TimeDeltaIndex.round() 方法。对于毫秒频率,请使用 freq 参数,其值设为 ‘ms’。
首先,导入所需的库 −
import pandas as pd
创建一个 TimeDeltaIndex 对象。我们使用 'data' 参数设置类似 timedelta 的数据 −
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'])
显示 TimedeltaIndex −
print("TimedeltaIndex...\n", tdIndex)
对 TimeDeltaIndex 日期使用毫秒频率的舍入操作。针对毫秒频率,我们使用了 'ms' −
print("\nPerforming round operation with milliseconds frequency...\n", tdIndex.round(freq='ms'))
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 =['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'))
输出
将生成以下代码 −
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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