Python Pandas - 返回給定 Period 物件上應用的時間序列頻率的字串別名


要返回給定 Period 物件上應用的時間序列頻率的字串別名,請使用 **period.freqstr** 屬性。

首先,匯入所需的庫:

import pandas as pd

pandas.Period 代表一段時間。建立兩個 Period 物件:

period1 = pd.Period("2020-09-23 03:55:20")
period2 = pd.Period(freq="Y", year = 2021, month = 2, day = 14, hour = 2, minute = 35)

顯示 Period 物件:

print("Period1...\n", period1)
print("Period2...\n", period2)

獲取頻率的字串別名:

res1 = period1.freqstr
res2 = period2.freqstr

示例

以下是程式碼:

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)

輸出

這將產生以下程式碼:

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>

更新於:2021年10月14日

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