Python Pandas——從 PeriodIndex 物件中獲取階段的分鐘


要從 PeriodIndex 物件獲取階段的分鐘,請使用 PeriodIndex.minute 屬性。

首先,匯入所需的庫 −

import pandas as pd

建立一個 PeriodIndex 物件。PeriodIndex 是一款不可變的 ndarray,其中包含表示常規時間間隔的有序值 −

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")

顯示 PeriodIndex 物件 −

print("PeriodIndex...\n", periodIndex)

顯示 PeriodIndex 物件中的分鐘 −

print("\nThe minute from the PeriodIndex object...\n", periodIndex.minute)

示例

以下是程式碼 −

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 minute from the PeriodIndex object
print("\nThe minute from the PeriodIndex object...\n", periodIndex.minute)

輸出

將生成以下程式碼 −

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 minute from the PeriodIndex object...
Int64Index([30, 15, 55, 40], dtype='int64')

更新日期: 2021-10-20

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