Python Pandas - 创建半开时间区间并检查端点是否存在

要创建半开时间区间，请使用 **pandas.Interval()** 并将 closed 参数设置为 right。要检查端点是否存在，请使用 in 属性。

首先，导入所需的库：

import pandas as pd

使用值为“right”的“closed”参数设置半开区间。半开区间，即 (0, 5]，描述为 0 < x <= 5 (closed='right')

interval = pd.Interval(left=0, right=20, closed='right')

显示区间

print("Interval...\n",interval)

检查区间中是否存在元素。这表明 closed = right 只包含最右端的端点。

print("\nThe left-most element exists in the Interval? = \n",0 in interval)
print("\nThe right-most element exists in the Interval? = \n",20 in interval)

示例

以下是代码：

import pandas as pd

# Half-Closed interval set using the "closed" parameter with value "right"
# Half-Closed i.e. (0, 5] is described by 0 < x <= 5 (closed='right').
interval = pd.Interval(left=0, right=20, closed='right')

# display the interval
print("Interval...\n",interval)

# display the interval length
print("\nInterval length...\n",interval.length)

# check for the existence of an element in an Interval
# This shows that closed = right contain only the right-most endpoint
print("\nThe left-most element exists in the Interval? = \n",0 in interval)
print("\nThe right-most element exists in the Interval? = \n",20 in interval)

输出

这将产生以下代码：

Interval...
(0, 20]

Interval length...
20

AmitDiwan

更新于：2021年10月20日

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