Python Pandas - 建立開放時間間隔並檢查兩個端點是否存在


要建立開放時間間隔,請使用 **pandas.Interval()** 並將 closed 引數設定為 neither。要檢查兩個端點是否存在,請使用 in 屬性。

首先,匯入所需的庫 -

import pandas as pd

使用值為“neither”的“closed”引數設定開放間隔。開放間隔(在數學中用方括號表示)不包含其端點,# 即開放間隔 [0, 5] 的特徵在於條件 0 < x < 5

interval = pd.Interval(left=0, right=20, closed='neither')

顯示間隔

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

檢查元素在間隔中是否存在。這表明 closed = neither 不包含其端點

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

以下是程式碼

import pandas as pd

# Open interval set using the "closed" parameter with value "neither"
# An open interval (in mathematics denoted by square brackets) does not contains its endpoints,
# i.e. the open interval [0, 5] is characterized by the conditions 0 < x < 5.
interval = pd.Interval(left=0, right=20, closed='neither')

# 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 = neither does not contain its endpoints
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)

輸出

這將生成以下程式碼

Interval...
(0, 20)

Interval length...
20

更新於: 2021年10月20日

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