要从具有特定时间序列频率的 DateTimeIndex 中提取年份,请使用DateTimeIndex.year属性。
首先,导入所需的库 -
import pandas as pd
DatetimeIndex,周期为 6,频率为 Y,即年。时区是澳大利亚/悉尼 -
datetimeindex = pd.date_range('2021-09-24 02:35:55', periods=6, tz='Australia/Sydney',freq='Y')
显示日期时间索引 -
print("DateTimeIndex...\n", datetimeindex)
获取年份 -
print("\nGetting the year name..\n",datetimeindex.year)
以下是代码 -
import pandas as pd # DatetimeIndex with period 6 and frequency as Y i.e. years # timezone is Australia/Sydney datetimeindex = pd.date_range('2021-09-24 02:35:55', periods=6, tz='Australia/Sydney', freq='Y') # display DateTimeIndex print("DateTimeIndex...\n", datetimeindex) # display DateTimeIndex frequency print("DateTimeIndex frequency...\n", datetimeindex.freq) # get the year print("\nGetting the year name..\n",datetimeindex.year)输出结果
这将产生以下输出 -
DateTimeIndex... DatetimeIndex(['2021-12-31 02:35:55+11:00', '2022-12-31 02:35:55+11:00', '2023-12-31 02:35:55+11:00', '2024-12-31 02:35:55+11:00', '2025-12-31 02:35:55+11:00', '2026-12-31 02:35:55+11:00'], dtype='datetime64[ns, Australia/Sydney]', freq='A-DEC') DateTimeIndex frequency... <YearEnd: month=12> Getting the year name.. Int64Index([2021, 2022, 2023, 2024, 2025, 2026], dtype='int64')