Pandas：计算 2 列之间的时间（以分钟为单位），不包括周末、public 节假日并考虑营业时间

Question

我有以下问题，我觉得我离解决它只有几步之遥，但我还没有足够的经验。为此，我使用了 business-duration。我查看了其他类似的答案并尝试了很多方法，但这是我得到的最接近的答案 (Using this answer)。我正在使用 Anaconda 和 Spyder，这是目前我在工作笔记本电脑上使用的唯一方法。我无法将一些自定义工作日功能安装到 anaconda 中。

我有一个大型数据集（约 20 万行），我需要解决此问题：

import pandas as pd
import business_duration as bd
import datetime as dt
import holidays as pyholidays

#Specify Business Working hours (8am - 5pm)
Bus_start_time = dt.time(8,00,0)
Bus_end_time = dt.time(17,0,0)

holidaylist = pyholidays.ZA()
unit='min'

list = [[10, '2022-01-01 07:00:00', '2022-01-08 15:00:00'], [11, '2022-01-02 18:00:00', '2022-01-10 15:30:00'],
[12, '2022-01-01 09:15:00', '2022-01-08 12:00:00'], [13, '2022-01-07 13:00:00', '2022-01-23 17:00:00']]

df = pd.DataFrame(list, columns =['ID', 'Start', 'End'])
print(df)

给出：

   ID      Start                  End 
0  10  2022-01-01 07:00:00  2022-01-08 15:00:00 
1  11  2022-01-02 18:00:00  2022-01-10 15:30:00 
2  12  2022-01-01 09:15:00  2022-01-08 12:00:00 
3  13  2022-01-07 13:00:00  2022-01-23 17:00:00

下一步用于测试单个日期：

startdate = pd.to_datetime('2022-01-01 00:00:00')
enddate = pd.to_datetime('2022-01-14 23:00:00')

df['TimeAdj'] = bd.businessDuration(startdate,enddate,Bus_start_time,Bus_end_time,holidaylist=holidaylist,unit=unit)
print(df)

这导致：

   ID        Start                  End            TimeAdj 
0  10  2022-01-01 07:00:00  2022-01-08 15:00:00    5400.0 
1  11  2022-01-02 18:00:00  2022-01-10 15:30:00    5400.0 
2  12  2022-01-01 09:15:00  2022-01-08 12:00:00    5400.0 
3  13  2022-01-07 13:00:00  2022-01-23 17:00:00    5400.0

出于某种原因，我显示了浮点值，但我可以稍后修复它。接下来，我需要在数据框中每行计算运行。

我尝试替换开始日期和结束日期中的 df 列，但出现错误：

startdate = df['Start']
enddate = df['End']

print(bd.businessDuration(startdate,enddate,Bus_start_time,Bus_end_time,holidaylist=holidaylist,unit=unit))`

ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().

然后我检查了业务持续时间的文档，并调整为以下内容：

from itertools import repeat

df['TimeAdj'] = list(map(bd.businessDuration,startdate,enddate,repeat(Bus_start_time),repeat(Bus_end_time),repeat(holidaylist),repeat(unit)))

AttributeError: 'str' object has no attribute 'date'

我希望在 TimeAdj 列的每一行中以正确的值结束 （添加了示例数字）。

   ID        Start                  End           TimeAdj 
0  10  2022-01-01 07:00:00  2022-01-08 15:00:00    2300 
1  11  2022-01-02 18:00:00  2022-01-10 15:30:00    2830 
2  12  2022-01-01 09:15:00  2022-01-08 12:00:00    2115 
3  13  2022-01-07 13:00:00  2022-01-23 17:00:00    4800

我需要对此进行哪些调整？

Answer 1

使用：

from functools import partial

# Convert strings to datetime
df['Start'] = pd.to_datetime(df['Start'])
df['End'] = pd.to_datetime(df['End'])

# Get holidays list
years = range(df['Start'].min().year, df['End'].max().year+1)
holidaylist = pyholidays.ZA(years=years).keys()

# Create a partial function as a shortcut
bduration = partial(bd.businessDuration,
                    starttime=Bus_start_time, endtime=Bus_end_time,
                    holidaylist=holidaylist, unit=unit)

# Compute business duration
df['TimeAdj'] = df.apply(lambda x: bduration(x['Start'], x['End']), axis=1)

输出：

>>> df
   ID               Start                 End  TimeAdj
0  10 2022-01-01 07:00:00 2022-01-08 15:00:00   2700.0
1  11 2022-01-02 18:00:00 2022-01-10 15:30:00   3150.0
2  12 2022-01-01 09:15:00 2022-01-08 12:00:00   2700.0
3  13 2022-01-07 13:00:00 2022-01-23 17:00:00   5640.0

Pandas：计算 2 列之间的时间（以分钟为单位），不包括周末、public 节假日并考虑营业时间

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