Python Pandas - 如何以秒频率舍入 TimeDeltaIndex


要以秒频率舍入 TimeDeltaIndex,请使用 TimeDeltaIndex.round() 方法。对于秒频率,请使用值 ‘S’freq 参数。

首先,导入所需的库 -

import pandas as pd

创建一个 TimeDeltaIndex 对象。我们使用 'data' 参数设置了类 timedelta 数据 -

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'])

显示 TimedeltaIndex -

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

对 TimeDeltaIndex 日期执行以秒频率舍入操作。对于秒频率,我们使用了 'S' -

print("\nPerforming round operation with seconds frequency...\n",
tdIndex.round(freq='S'))

示例

以下是代码 -

import pandas as pd

# Create a TimeDeltaIndex object
# We have set the timedelta-like data using the 'data' parameter
tdIndex = pd.TimedeltaIndex(data =['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)

# Round operation on TimeDeltaIndex date with seconds frequency
# For seconds frequency, we have used 'S'
print("\nPerforming round operation with seconds frequency...\n",
tdIndex.round(freq='S'))

输出

这将生成以下代码 -

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

Performing round operation with seconds frequency...
TimedeltaIndex(['10 days 05:02:00', '0 days 22:39:20', '2 days 07:08:02',
'0 days 21:15:46'],
dtype='timedelta64[ns]', freq=None)

更新于: 20-Oct-2021

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