df.rename(columns={"A":"a","B":"b", "C":"c"}, inplace=True,errors='raise') # displaying the columns # after renaming print(df.columns) 输出: 出现错误 注:本文由VeryToolz翻译自Rename specific column(s) in Pandas,非经特殊声明,文中代码和图片版权归原作者eshwitha_reddy所有,本译文的传播和使用请遵循“署名-相同方式共享 4.0 国际 (CC BY-SA 4.0)”协议。
When merging, use thesuffixesparameter to automatically add suffixes to overlapping column names. For more specific renaming, rename columns of individual DataFrames before merging. Example:df1.rename(columns={'A': 'df1_A'}, inplace=True) df2.rename(columns={'A': 'df2_A'}, inplace=True)...
DataFrame.rename()accepts a dictionary as a parameter for columns you want to rename. So you just pass a dict with a key-value pair; the key is an existing column you would like to rename and the value would be your preferred column name. # Rename single specific column df.rename(column...
In order to rename a single column name on pandas DataFrame, you can usecolumn={}parameter with the dictionary mapping of the old name and a new name. Note that when you usecolumnparam, you cannot explicitly useaxisparam. pandasDataFrame.rename()accepts a dict(dictionary) as a param for ...
df rename a bunch of columns df.columns = ['test_age','test_favorite_color','test_grade','test_name'] df.head() rename a specific column df.rename(columns={'age':'is_just_a_number'}, inplace=True) df.head()
Sometimes it is required to rename the single or specific column names only. Use thecolumnparameter ofDataFrame.rename()function and pass the columns to be renamed. Use the following syntax code to rename the column. df.rename(columns={'column_current_name':'new_name'}) ...
Depending on the values in the dictionary, we may use this method to rename a single column or many columns. Example Code: importpandasaspd d1={"Names":["Harry","Petter","Daniel","Ron"],"ID":[1,2,3,4]}df=pd.DataFrame(d1)display(df)# rename columnsdf1=df.rename(columns={"Name...
# Rename values in Customer Fname column to uppercasedf["Customer Fname"] = df["Customer Fname"].str.upper()str.strip()函数用于删除字符串值开头或结尾可能出现的任何额外空格。# In Customer Segment column, convert names to lowercase and remove leading/trailing spacesdf['Customer Segment'] =...
import pandas as pd def test(): # 读取Excel文件 df = pd.read_excel('测试数据.xlsx') # 插入列 df.insert(loc=2, column='爱好', value=None) # 保存修改后的DataFrame到新的Excel文件 df.to_excel('结果.xlsx', index=False) test() 3、插入多列 假设我需要在D列(班级)后面插入5列,表头名...
rename方法 pd.rename()方法可以用于重命名 DataFrame 或 Series 对象的 index 或 column。以下是此方法的常用参数: mapper:字典、函数、Series、下面三个中的任何一个组成的可迭代对象,用于将列名或索引名映射到新名称。 index:布尔值或者可选参数,默认为 True,如果值为 False,表示只重命名列名。 columns:布尔值...