Python Pandas - 对具有小时频率的 TimeDeltaIndex 执行向下取整操作
若要对具有小时频率的 TimeDeltaIndex 执行向下取整操作,请使用 TimeDeltaIndex.floor() 方法。对于小时频率,请使用 freq 参数,其值‘H’。
首先,导入必要的库 −
import pandas as pd
创建一个 TimeDeltaIndex 对象。我们已使用 'data' 参数设置类似时间间隔的数据 −
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'])
显示 TimeDeltaIndex −
print("TimedeltaIndex...\n", tdIndex)
向下取整带有小时频率的时间间隔索引日期。对于小时频率,我们已使用'H' −
print("\nPerforming Floor operation with hourly frequency...\n",
tdIndex.floor(freq='H'))示例
以下为代码 −
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'))输出
这将生成以下代码 −
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)
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