Python Pandas - 从具有特定时间序列频率的 DateTimeIndex 中提取日期
要从具有特定时间序列频率的 DateTimeIndex 中提取年份,请使用 DateTimeIndex.day 属性。
首先,导入所需的库 −
import pandas as pd
时期为 6、频率为 D(即天)的 DateTimeIndex。时区为澳大利亚/悉尼 −
datetimeindex = pd.date_range('2021-10-20 02:35:55', periods=6, tz='Australia/Sydney',freq='D')显示 DateTimeIndex −
print("DateTimeIndex...\n", datetimeindex)获取日期 −
print("\nGetting the day..\n",datetimeindex.day)
示例
以下是代码 −
import pandas as pd
# DatetimeIndex with period 6 and frequency as D i.e. day
# timezone is Australia/Sydney
datetimeindex = pd.date_range('2021-10-20 02:35:55', periods=6, tz='Australia/Sydney',freq='D')
# display DateTimeIndex
print("DateTimeIndex...\n", datetimeindex)
# display DateTimeIndex frequency
print("DateTimeIndex frequency...\n", datetimeindex.freq)
# get the day
print("\nGetting the day..\n",datetimeindex.day)输出
将生成以下输出 −
DateTimeIndex...
DatetimeIndex(['2021-10-20 02:35:55+11:00', '2021-10-21 02:35:55+11:00',
'2021-10-22 02:35:55+11:00', '2021-10-23 02:35:55+11:00',
'2021-10-24 02:35:55+11:00', '2021-10-25 02:35:55+11:00'],
dtype='datetime64[ns, Australia/Sydney]', freq='D')
DateTimeIndex frequency...
<Day>
Getting the day..
Int64Index([20, 21, 22, 23, 24, 25], dtype='int64')
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