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法律學Python Pandas - 從 TimeDeltaIndex 中建立 Series 並設定結果 Series 的名稱
使用 to_series() 方法從 Pandas 中的 TimeDeltaIndex 建立一個 series。name 引數用於設定結果 series 的名稱。
首先，匯入所需的庫 -
import pandas as pd
建立 TimeDeltaIndex 物件。我們已使用“data”引數設定類似時間差的資料 -
tdIndex = pd.TimedeltaIndex(data =['10 day 5h 2 min 3us 10ns', '+22:39:19.999999', '2 day 4h 03:08:02.000045', '+21:15:45.999999'])
顯示 TimedeltaIndex -
print("TimedeltaIndex...\n", tdIndex)將 TimeDeltaIndex 轉換為 Series 並設定結果 series 的名稱。名稱使用“name”引數設定 -
print("\nTimeDeltaIndex to series...\n", tdIndex.to_series(name="DateTime Data"))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 =['10 day 5h 2 min 3us 10ns', '+22:39:19.999999',
'2 day 4h 03:08:02.000045', '+21:15:45.999999'])
# 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)
# Return TimeDeltaIndex as object ndarray
print("\nReturn TimeDeltaIndex as object ndarray of datetime.datetime objects...\n",
tdIndex.to_pytimedelta())
# Convert TimeDeltaIndex to Series and set the name of the resulting series
# The name is set using the 'name' parameter
print("\nTimeDeltaIndex to series...\n", tdIndex.to_series(name="DateTime Data"))結果
這將產生以下程式碼 -
TimedeltaIndex... TimedeltaIndex(['10 days 05:02:00.000003010', '0 days 22:39:19.999999', '2 days 07:08:02.000045', '0 days 21:15:45.999999'], dtype='timedelta64[ns]', freq=None) The Dataframe of the components of TimeDeltas... days hours minutes seconds milliseconds microseconds nanoseconds 0 10 5 2 0 0 3 10 1 0 22 39 19 999 999 0 2 2 7 8 2 0 45 0 3 0 21 15 45 999 999 0 Return TimeDeltaIndex as object ndarray of datetime.datetime objects... [datetime.timedelta(days=10, seconds=18120, microseconds=3) datetime.timedelta(seconds=81559, microseconds=999999) datetime.timedelta(days=2, seconds=25682, microseconds=45) datetime.timedelta(seconds=76545, microseconds=999999)] TimeDeltaIndex to series... 10 days 05:02:00.000003010 10 days 05:02:00.000003010 0 days 22:39:19.999999 0 days 22:39:19.999999 2 days 07:08:02.000045 2 days 07:08:02.000045 0 days 21:15:45.999999 0 days 21:15:45.999999 Name: DateTime Data, dtype: timedelta64[ns]
更新於： 20-Oct-2021
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