Python Pandas - 對具有小時頻率的 TimeDeltaIndex 執行向下取整操作


若要對具有小時頻率的 TimeDeltaIndex 執行向下取整操作,請使用 TimeDeltaIndex.floor() 方法。對於小時頻率,請使用 freq 引數,其值‘H’

首先,匯入必要的庫 −

import pandas as pd

建立一個 TimeDeltaIndex 物件。我們已使用 'data' 引數設定類似時間間隔的資料 −

tdIndex = pd.TimedeltaIndex(data =['5 day 8h 20min 35us 45ns', '+17:42:19.999999',
'7 day 3h 08:16:02.000055', '+22:35:25.999999'])

顯示 TimeDeltaIndex −

print("TimedeltaIndex...\n", tdIndex)

向下取整帶有小時頻率的時間間隔索引日期。對於小時頻率,我們已使用'H' −

print("\nPerforming Floor operation with hourly frequency...\n",
tdIndex.floor(freq='H'))

示例

以下為程式碼 −

import pandas as pd

# Create a TimeDeltaIndex object
# We have set the timedelta-like data using the 'data' parameter
tdIndex = pd.TimedeltaIndex(data =['5 day 8h 20min 35us 45ns', '+17:42:19.999999',
'7 day 3h 08:16:02.000055', '+22:35:25.999999'])

# display TimedeltaIndex
print("TimedeltaIndex...\n", tdIndex)

# Return a dataframe of the components of TimeDeltas
print("\nThe Dataframe of the components of TimeDeltas...\n", tdIndex.components)

# Floor operation on TimeDeltaIndex date with hourly frequency
# For hourly frequency, we have used 'H'
print("\nPerforming Floor operation with hourly frequency...\n",
tdIndex.floor(freq='H'))

輸出

這將生成以下程式碼 −

TimedeltaIndex...
TimedeltaIndex(['5 days 08:20:00.000035045', '0 days 17:42:19.999999',
'7 days 11:16:02.000055', '0 days 22:35:25.999999'],
dtype='timedelta64[ns]', freq=None)

The Dataframe of the components of TimeDeltas...
  days hours minutes seconds milliseconds microseconds nanoseconds
0   5    8       20      0           0            35         45
1   0   17       42     19         999           999          0
2   7   11       16      2           0            55          0
3   0   22       35     25         999           999          0
 
Performing Floor operation with hourly frequency...
TimedeltaIndex(['5 days 08:00:00', '0 days 17:00:00', '7 days 11:00:00',
'0 days 22:00:00'],
dtype='timedelta64[ns]', freq=None)

更新日期:2021-10-20

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