要以分钟频率舍入 DateTimeIndex,请使用该方法。对于分钟频率,使用值为'T'的freq 参数。DateTimeIndex.round()
首先,导入所需的库 -
import pandas as pd
DatetimeIndex,周期为 5,频率为秒。时区是澳大利亚/阿德莱德 -
datetimeindex = pd.date_range('2021-09-29 07:00', periods=5, tz='Australia/Adelaide', freq='45s')
显示日期时间索引 -
print("DateTimeIndex...\n", datetimeindex)
以分钟频率对 DateTimeIndex 日期进行舍入操作。对于分钟频率,我们使用了 'T -
print("\nPerforming round operation with minute frequency...\n", datetimeindex.round(freq='T'))
以下是代码 -
import pandas as pd # DatetimeIndex with period 5 and frequency as s i.e. seconds # timezone is Australia/Adelaide datetimeindex = pd.date_range('2021-09-29 07:00', periods=5, tz='Australia/Adelaide', freq='45s') # display DateTimeIndex print("DateTimeIndex...\n", datetimeindex) # display DateTimeIndex frequency print("DateTimeIndex frequency...\n", datetimeindex.freq) # getting the minute res = datetimeindex.minute # display only the minute print("\nThe minute from DateTimeIndex...\n", res) # Round operation on DateTimeIndex date with minute frequency # For minute frequency, we have used 'T' print("\nPerforming round operation with minute frequency...\n", datetimeindex.round(freq='T'))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 07:00:45+09:30', '2021-09-29 07:01:30+09:30', '2021-09-29 07:02:15+09:30', '2021-09-29 07:03:00+09:30'], dtype='datetime64[ns, Australia/Adelaide]', freq='45S') DateTimeIndex frequency... <45 * Seconds> The minute from DateTimeIndex... Int64Index([0, 0, 1, 2, 3], dtype='int64') Performing round operation with minute frequency... DatetimeIndex(['2021-09-29 07:00:00+09:30', '2021-09-29 07:01:00+09:30', '2021-09-29 07:02:00+09:30', '2021-09-29 07:02:00+09:30', '2021-09-29 07:03:00+09:30'], dtype='datetime64[ns, Australia/Adelaide]', freq=None)