Question

How to change the header of a dataframe in python

Answer 1

To change the header of a DataFrame in Python, assign a new list of column names to the DataFrame.columns attribute, ensuring the list length matches the number of columns in the DataFrame.

Step-by-step explanation:

To change the header of a DataFrame in Python, you typically use the pandas library. To do so, you can assign a new list of column names to the DataFrame.columns attribute. Here is a simple example:

import pandas as pd

# Create a DataFrame
df = pd.DataFrame({
'A': [1, 2, 3],
'B': [4, 5, 6]
})

# Define new headers
new_headers = ['X', 'Y']

df.columns = new_headers

This will rename the columns of the DataFrame df to 'X' and 'Y'. Remember, the length of the new headers list should match the number of columns in the DataFrame.