要以每小时的频率舍入 DateTimeIndex,请使用方法。对于每小时频率,使用值为“H”的freq 参数。DateTimeIndex.round()
首先,导入所需的库 -
import pandas as pd
创建一个日期时间索引,周期为 5,频率为 T 即分钟 -
datetimeindex = pd.date_range('2021-09-29 07:00', periods=5, tz='Australia/Adelaide', freq='35T')
显示日期时间索引 -
print("DateTimeIndex...\n", datetimeindex)
以每小时的频率对 DateTimeIndex 日期进行舍入操作。对于每小时频率,我们使用了“H” -
print("\nPerforming round operation with hourly frequency...\n", datetimeindex.round(freq='H'))
以下是代码 -
import pandas as pd # DatetimeIndex with period 5 and frequency as T i.e. minutes # timezone is Australia/Adelaide datetimeindex = pd.date_range('2021-09-29 07:00', periods=5, tz='Australia/Adelaide', freq='35T') # display print("DateTimeIndex...\n", datetimeindex) # getting the hour res = datetimeindex.hour # display only the hour print("\nThe hour from DateTimeIndex...\n", res) # Round operation on DateTimeIndex date with hourly frequency # For hourly frequency, we have used 'H' print("\nPerforming round operation with hourly frequency...\n", datetimeindex.round(freq='H'))输出结果
这将产生以下代码 -
DateTimeIndex... DatetimeIndex(['2021-09-29 07:00:00+09:30', '2021-09-29 07:35:00+09:30', '2021-09-29 08:10:00+09:30', '2021-09-29 08:45:00+09:30', '2021-09-29 09:20:00+09:30'], dtype='datetime64[ns, Australia/Adelaide]', freq='35T') The hour from DateTimeIndex... Int64Index([7, 7, 8, 8, 9], dtype='int64') Performing round operation with hourly frequency... DatetimeIndex(['2021-09-29 07:00:00+09:30', '2021-09-29 08:00:00+09:30', '2021-09-29 08:00:00+09:30', '2021-09-29 09:00:00+09:30', '2021-09-29 09:00:00+09:30'], dtype='datetime64[ns, Australia/Adelaide]', freq=None)