When working with pandas DataFrames you are often required to rename multiple columns of pandas DataFrame, you can do this by using therename()method. This method takes columns param that takes dict of key-value
Use therename()Function to Rename Multiple Columns Using Pandas The Pandas library provides therename()function used to rename the columns of a DataFrame. Therename()function takes amapper, a dictionary-like data structure that contains the renaming column as the key and the name as the value....
19],"#marks": [85.10,77.80,91.54]}# Create DataFrame from dictstudent_df = pd.DataFrame(student_dict)# before renameprint(student_df.columns.values)# remove first character of column namesstudent_df.rename(columns=lambdax: x[1:], inplace=True)# after renameprint(student_df.columns.values)...
This is a simple and effective way to rename columns in pandas. Frequently asked questions about renaming columns in pandas: How to Rename Multiple Columns? To rename multiple columns, use therenamemethod with a dictionary mapping old column names to new ones. Example: df.rename(columns={'OldN...
示例2：使用函数进行列名重命名import pandas as pddata = {'A': [1, 2, 3],'B': [4, 5, 6]}df = pd.DataFrame(data)print("Original DataFrame:")print(df)df = df.rename(columns=lambda x: x.lower())print("\nRenamed DataFrame:")print(df)输出结果：Original DataFrame: A B1412...
Rename Multiple Columns For multiple columns, we just have to provide dictionaries of old and new column names separated by a comma“,”and it will automatically replace the column names. The new column names are "Student_ID", "First_Name", and "Average_Grade". ...
Pandas DataFrame.rename() function is used to change the single column name, multiple columns, by index position, in place, with a list, with a dict, and
Example: Renaming Multiple Columns We can also rename multiple columns in a DataFrame by providing a dictionary mapping of old column names to new column names. Let’s see an example of renaming multiple columns: importpandasaspd# Creating a sample DataFramedata={'A':[1,2,3],'B':[4,5,...
Pandas DataFrame | Renaming Columns: In this tutorial, we will learn how can we rename one or all columns of a DataFrame in Python?ByPranit SharmaLast updated : April 10, 2023 Columns are the different fields that contain their particular values when we create a DataFrame. We can perform ce...
rename(columns = {"x1": "col1", "x3": "col3"}) # Using rename() print(data_new2) # Print updated pandas DataFrameAs shown in Table 3, we have created another duplicate of our input data matrix, in which we have only renamed the columns x1 and x3....