Python Pandas CustomBusinessHour - 将提供的日期往回滚动

要向后滚动提供的日期，请在 Pandas 中使用 CustomBusinessHour.rollback() 方法。首先，导入所需的库 -

import pandas as pd

在 Pandas 中设置时间戳对象 -

timestamp = pd.Timestamp('2021-12-20 08:35:10')

创建 CustomBusinessHour 偏移量。CustomBusinessHour 是 DateOffset 子类 -

cbhOffset = pd.tseries.offsets.CustomBusinessHour(n = 5, weekmask = 'Mon Tue Wed Fri')

将偏移量添加到时间戳并显示更新后的时间戳 -

print("\nUpdated Timestamp...\n",timestamp + cbhOffset)

如果不在偏移量上，则向后滚动 -

roll_back = cbhOffset.rollback(pd.Timestamp('2021-12-18 08:35:10'))

显示结果 -

print("\nRoll Backward Result...\n",roll_back)

示例

以下为代码 -

import pandas as pd

# Set the timestamp object in Pandas
timestamp = pd.Timestamp('2021-12-20 08:35:10')

# Display the Timestamp
print("Timestamp...\n",timestamp)

# Create the CustomBusinessHour Offset
# CustomBusinessHour is the DateOffset subclass
# Weekmask of valid business days
cbhOffset = pd.tseries.offsets.CustomBusinessHour(n = 5, weekmask = 'Mon Tue Wed Fri')

# Display the CustomBusinessHour Offset
print("\nCustomBusinessHour Offset...\n",cbhOffset)

# Add the offset to the Timestamp and display the Updated Timestamp
print("\nUpdated Timestamp...\n",timestamp + cbhOffset)

# roll backward if not on offset
roll_back = cbhOffset.rollback(pd.Timestamp('2021-12-18 08:35:10'))

# display the result
print("\nRoll Backward Result...\n",roll_back)

输出

将生成以下代码 -

Timestamp...
 2021-12-20 08:35:10

CustomBusinessHour Offset...
 <5 * CustomBusinessHours: CBH=09:00-17:00>

Updated Timestamp...
 2021-12-20 14:00:00

Roll Backward Result...
 2021-12-17 17:00:00

AmitDiwan

更新于： 2021-10-22

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