Python Pandas - 从 DateTimeIndex 中提取频率对象作为字符串

要从DateTimeIndex中以字符串形式提取频率对象，请使用Pandas中的DateTimeIndex.freqstr属性。

首先，导入所需的库-

import pandas as pd

创建一个周期为6且频率为D的DatetimeIndex-

datetimeindex = pd.date_range(2021-10-20 02:30:50, periods=6, tz=Australia/Adelaide, freq=D)

显示日期时间索引-

print("DateTimeIndex...\n", datetimeindex)

将DateTimeIndex频率显示为字符串-

print("DateTimeIndex frequency as string...\n", datetimeindex.freqstr)

示例

以下是代码-

import pandas as pd #DatetimeIndex，周期为6，频率为Dieday #时区是澳大利亚/阿德莱德 datetimeindex = pd.date_range(2021-10-20 02:30:50, periods=6, tz=Australia/Adelaide, freq=D) #显示日期时间索引 print("DateTimeIndex...\n", datetimeindex) #显示日期时间索引 frequency print("DateTimeIndex frequency...\n", datetimeindex.freq) #显示日期时间索引 frequency as a string print("DateTimeIndex frequency as string...\n", datetimeindex.freqstr)输出结果

这将产生以下代码-

DateTimeIndex... DatetimeIndex([2021-10-20 02:30:50+10:30, 2021-10-21 02:30:50+10:30, 2021-10-22 02:30:50+10:30, 2021-10-23 02:30:50+10:30, 2021-10-24 02:30:50+10:30, 2021-10-25 02:30:50+10:30], dtype=datetime64[ns, Australia/Adelaide], freq=D) DateTimeIndex frequency... <Day> DateTimeIndex frequency as string... D