Python Pandas - 指出重复的索引值
要指出重复的索引值,请使用 index.duplicated() 方法。
首先,导入所需的库 −
import pandas as pd
创建带有一些重复项的索引 −
index = pd.Index(['Car','Bike','Airplane','Ship','Airplane'])
显示索引 −
print("Pandas Index with duplicates...\n",index)将重复的索引值指示为 True,其余为 False。默认情况下,它将重复值的第一次出现保持为未标记状态 −
print("\nIndicating duplicate values...\n", index.duplicated())
示例
以下是代码 −
import pandas as pd
# Creating the index with some duplicates
index = pd.Index(['Car','Bike','Airplane','Ship','Airplane'])
# Display the index
print("Pandas Index with duplicates...\n",index)
# Return the dtype of the data
print("\nThe dtype object...\n",index.dtype)
# get the dimensions of the data
print("\nGet the dimensions...\n",index.ndim)
# Indicate duplicate index values as True, rest False
# By default it keeps the first occurrence of the duplicate value unmarked
print("\nIndicating duplicate values...\n", index.duplicated())输出
这将生成以下代码 −
Pandas Index with duplicates... Index(['Car', 'Bike', 'Airplane', 'Ship', 'Airplane'], dtype='object') The dtype object... object Get the dimensions... 1 Indicating duplicate values... [False False False False True]
广告
数据结构
网络
RDBMS
操作系统
Java
iOS
HTML
CSS
Android
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP