Python Pandas - 对具有分钟频率的 TimeDeltaIndex 对象执行向上取整运算


要对具有分钟频率的 TimeDeltaIndex 执行向上取整运算,请使用 **TimeDeltaIndex.ceil()** 方法。对于分钟频率,请使用值为 **‘T’** 的 **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' 参数设置了类似 timedelta 的数据:

tdIndex = pd.TimedeltaIndex(data =['4 day 8h 20min 35us 45ns', '+17:42:19.999999',
'9 day 3h 08:16:02.000055', '+22:35:25.000075'])

显示 TimedeltaIndex:

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

对 TimeDeltaIndex 日期执行具有分钟频率的向上取整运算。对于分钟频率,我们使用了 'T':

print("\nPerforming Ceil operation with minutely frequency...\n",
tdIndex.ceil(freq='T'))

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 =['4 day 8h 20min 35us 45ns', '+17:42:19.999999',
'9 day 3h 08:16:02.000055', '+22:35:25.000075'])

# 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)

# Ceil operation on TimeDeltaIndex date with minutely frequency
# For minutely frequency, we have used 'T'
print("\nPerforming Ceil operation with minutely frequency...\n",
tdIndex.ceil(freq='T'))

输出

这将产生以下代码:

TimedeltaIndex...
TimedeltaIndex(['4 days 08:20:00.000035045', '0 days 17:42:19.999999',
'9 days 11:16:02.000055', '0 days 22:35:25.000075'],
dtype='timedelta64[ns]', freq=None)

The Dataframe of the components of TimeDeltas...
   days hours minutes seconds milliseconds microseconds nanoseconds
0    4     8      20      0            0          35          45
1    0    17      42     19          999         999           0
2    9    11      16      2            0          55           0
3    0    22      35     25            0          75           0

Performing Ceil operation with minutely frequency...
TimedeltaIndex(['4 days 08:21:00', '0 days 17:43:00', '9 days 11:17:00',
'0 days 22:36:00'],
dtype='timedelta64[ns]', freq=None)

更新于:2021年10月20日

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