Python Pandas - 检查索引是否有重复值

要检查索引是否有重复值，请使用Pandas中的index.has_duplicates属性。

首先，导入所需的库-

import pandas as pd

创建索引-

index = pd.Index([Car,Bike,Truck,Car,Airplane])

显示索引-

print("Pandas Index...\n",index)

检查索引是否具有重复值-

print("\nIs the Pandas index having duplicate values?\n",index.has_duplicates)

示例

以下是代码-

import pandas as pd #创建索引 index = pd.Index([Car,Bike,Truck,Car,Airplane]) #显示索引 print("Pandas Index...\n",index) #返回一个表示索引中数据的数组 print("\nArray...\n",index.values) #检查索引是否有重复值 print("\nIs the Pandas index having duplicate values?\n",index.has_duplicates)输出结果

这将产生以下代码-

Pandas Index... Index([Car, Bike, Truck, Car, Airplane], dtype=object) Array... [Car Bike Truck Car Airplane] Is the Pandas index having duplicate values? True