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：

Open Compiler
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>

更新于：2021年10月14日

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