Menu
×
   ❮     
HTML CSS JAVASCRIPT SQL PYTHON JAVA PHP HOW TO W3.CSS C C++ C# BOOTSTRAP REACT MYSQL JQUERY EXCEL XML DJANGO NUMPY PANDAS NODEJS R TYPESCRIPT ANGULAR GIT POSTGRESQL MONGODB ASP AI GO KOTLIN SASS VUE DSA GEN AI SCIPY AWS CYBERSECURITY DATA SCIENCE
     ❯   

Pandas DataFrame rename_axis() 方法

❮ DataFrame 参考


示例

设置行轴的名称

import pandas as pd

data = {
  "name": ["Sally", "Mary", "John"],
  "age": [50, 40, 30],
  "qualified": [True, False, False]
}
df = pd.DataFrame(data)

newdf = df.rename_axis("members")

print(newdf)
自己试试 »

定义和用法

The rename_axis() 方法允许您更改行轴或列轴的名称。


语法

dataframe.rename_axis(mapper, index, columns, axis, copy, inplace)

参数

indexcolumnsaxis copy inplace 参数是 关键字参数

参数 描述
mapper   可选。一个字符串或列表,包含轴的新名称
index 字符串
列表
字典
可选。一个字符串、列表或字典,包含行轴的新名称
columns 字符串
列表
字典
可选。一个字符串、列表或字典,包含列轴的新名称
axis 0
1
'index'
'columns'
可选,默认为 0。要执行重命名操作的轴(如果存在 mapper 参数且 index 或 columns 未设置,则很重要)
copy True
False
可选,默认为 True。是否也复制底层数据
inplace True
False
可选,默认为 False。如果为 True:在当前 DataFrame 上执行操作。如果为 False:返回执行操作的副本。

返回值

包含结果的 DataFrame,如果 inplace 参数设置为 True,则返回 None。

此函数不会对原始 DataFrame 对象进行更改。


❮ DataFrame 参考

×

Contact Sales

If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail:
[email protected]

Report Error

If you want to report an error, or if you want to make a suggestion, send us an e-mail:
[email protected]

W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using W3Schools, you agree to have read and accepted our terms of use, cookie and privacy policy.

Copyright 1999-2024 by Refsnes Data. All Rights Reserved. W3Schools is Powered by W3.CSS.