Python Pandas - 返回给定 Period 对象上应用的时间序列频率的字符串别名
要返回给定 Period 对象上应用的时间序列频率的字符串别名,请使用 **period.freqstr** 属性。
首先,导入所需的库:
import pandas as pd
pandas.Period 代表一段时间。创建两个 Period 对象:
period1 = pd.Period("2020-09-23 03:55:20") period2 = pd.Period(freq="Y", year = 2021, month = 2, day = 14, hour = 2, minute = 35)
显示 Period 对象:
print("Period1...\n", period1) print("Period2...\n", period2)
获取频率的字符串别名:
res1 = period1.freqstr res2 = period2.freqstr
示例
以下是代码:
import pandas as pd # The pandas.Period represents a period of time # creating two Period objects period1 = pd.Period("2020-09-23 03:55:20") period2 = pd.Period(freq="Y", year = 2021, month = 2, day = 14, hour = 2, minute = 35) # display the Period objects print("Period1...\n", period1) print("Period2...\n", period2) # get the string alias of the frequency res1 = period1.freqstr res2 = period2.freqstr # Return the string alias of the frequency from two Period objects print("\nString alias of the frequency from the 1st Period object ...\n", res1) print("\nString alias of the frequency from the 2nd Period object ...\n", res2)
输出
这将产生以下代码:
Period1... 2020-09-23 03:55:20 Period2... 2021 String alias of the frequency from the 1st Period object ... <Second> String alias of the frequency from the 2nd Period object ... <YearEnd: month=12>
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