PeriodIndex 개체에서 연도를 가져오려면 PeriodIndex.year를 사용하세요. 재산.
먼저 필요한 라이브러리를 가져옵니다 -
import pandas as pd
PeriodIndex 개체를 만듭니다. "freq" 매개변수를 사용하여 주파수를 설정했습니다 -
periodIndex = pd.PeriodIndex(['2021-09-25 07:30:35', '2019-10-30 04:15:45', '2021-07-15 02:55:15', '2022-06-25 09:40:55'], freq="T")
PeriodIndex 개체 표시 -
print("PeriodIndex...\n", periodIndex)
PeriodIndex 빈도 표시 -
print("\nPeriodIndex frequency object...\n", periodIndex.freq)
PeriodIndex 개체의 연도 표시 -
print("\nThe year from the PeriodIndex object...\n", periodIndex.year)
예시
다음은 코드입니다 -
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(['2021-09-25 07:30:35', '2019-10-30 04:15:45', '2021-07-15 02:55:15', '2022-06-25 09:40:55'], freq="T") # Display PeriodIndex object print("PeriodIndex...\n", periodIndex) # Display PeriodIndex frequency print("\nPeriodIndex frequency object...\n", periodIndex.freq) # Display PeriodIndex frequency as string print("\nPeriodIndex frequency object as a string...\n", periodIndex.freqstr) # Display year from the PeriodIndex object print("\nThe year from the PeriodIndex object...\n", periodIndex.year)
출력
이것은 다음 코드를 생성합니다 -
PeriodIndex... PeriodIndex(['2021-09-25 07:30', '2019-10-30 04:15', '2021-07-15 02:55', '2022-06-25 09:40'], dtype='period[T]') PeriodIndex frequency object... <Minute> PeriodIndex frequency object as a string... T The year from the PeriodIndex object... Int64Index([2021, 2019, 2021, 2022], dtype='int64')