要显示给定 PeriodIndex 对象中每个元素的周期结束时间,请使用PeriodIndex.end_time属性。
首先,导入所需的库 -
import pandas as pd
创建一个 PeriodIndex 对象。PeriodIndex 是一个不可变的 ndarray,其中包含指示定期时间段的序数值。我们使用“freq”参数设置了频率 -
periodIndex = pd.PeriodIndex(['2018-07-25', '2019-10-30', '2020-11-20', '2021-09-15', '2022-03-12', '2023-06-18'], freq="D")
显示 PeriodIndex 对象 -
print("PeriodIndex...\n", periodIndex)
显示结束时间 -
print("\nEnd Time...\n", periodIndex.end_time)
以下是代码 -
import pandas as pd # Create a PeriodIndex object # PeriodIndex is an immutable ndarray holding ordinal values indicating regular periods in time # We have set the frequency using the "freq" parameter periodIndex = pd.PeriodIndex(['2018-07-25', '2019-10-30', '2020-11-20', '2021-09-15', '2022-03-12', '2023-06-18'], freq="D") # Display PeriodIndex object print("PeriodIndex...\n", periodIndex) # Display PeriodIndex frequency print("\nPeriodIndex frequency...\n", periodIndex.freq) # Display the end time print("\nEnd Time...\n", periodIndex.end_time)输出结果
这将产生以下代码 -
PeriodIndex... PeriodIndex(['2018-07-25', '2019-10-30', '2020-11-20', '2021-09-15', '2022-03-12', '2023-06-18'], dtype='period[D]') PeriodIndex frequency... <Day> End Time... DatetimeIndex(['2018-07-25 23:59:59.999999999', '2019-10-30 23:59:59.999999999', '2020-11-20 23:59:59.999999999', '2021-09-15 23:59:59.999999999', '2022-03-12 23:59:59.999999999', '2023-06-18 23:59:59.999999999'], dtype='datetime64[ns]', freq=None)