📅  最后修改于: 2023-12-03 15:34:16.536000             🧑  作者: Mango
如果您在使用Python Pandas库时需要对TimedeltaIndex中的时间值进行四舍五入,那么您可以使用TimedeltaIndex.round()函数。该函数可用于将TimedeltaIndex中的所有时间值四舍五入到最接近的指定频率。
下面是TimedeltaIndex.round()函数的语法。
TimedeltaIndex.round(freq=None, ambiguous='raise', nonexistent='raise')
参数说明:
下面是TimedeltaIndex.round()函数的用法示例。
import pandas as pd
tdi = pd.TimedeltaIndex(['4 days 10:05:30', '1 days 02:35:15', '3 days 20:15:45', '5 days 01:00:00'])
print("Original TimedeltaIndex:\n", tdi)
# Round to nearest hour
rounded_tdi = tdi.round('H')
print("\nTimedeltaIndex rounded to nearest hour:\n", rounded_tdi)
# Round to nearest half-hour
rounded_tdi = tdi.round('30min')
print("\nTimedeltaIndex rounded to nearest half-hour:\n", rounded_tdi)
# Round to nearest day
rounded_tdi = tdi.round('D')
print("\nTimedeltaIndex rounded to nearest day:\n", rounded_tdi)
输出:
Original TimedeltaIndex:
TimedeltaIndex(['4 days 10:05:30', '1 days 02:35:15', '3 days 20:15:45',
'5 days 01:00:00'],
dtype='timedelta64[ns]', freq=None)
TimedeltaIndex rounded to nearest hour:
TimedeltaIndex(['4 days 10:00:00', '1 days 03:00:00', '3 days 20:00:00',
'5 days 01:00:00'],
dtype='timedelta64[ns]', freq=None)
TimedeltaIndex rounded to nearest half-hour:
TimedeltaIndex(['4 days 10:00:00', '1 days 02:30:00', '3 days 20:30:00',
'5 days 01:00:00'],
dtype='timedelta64[ns]', freq=None)
TimedeltaIndex rounded to nearest day:
TimedeltaIndex(['4 days 00:00:00', '1 days 00:00:00', '4 days 00:00:00',
'5 days 00:00:00'],
dtype='timedelta64[ns]', freq=None)
这个例子演示了如何使用TimedeltaIndex.round()函数将TimedeltaIndex中的时间值舍入到最接近的指定频率。在这个例子中,我们创建了一个TimedeltaIndex,然后将其分别舍入到最接近的小时、半小时和天。