• Data Wrangling

    Efficiently Adding Columns with Default Values to Pandas DataFrames

    July 16, 2025 - By 

    Adding new columns to Pandas DataFrames is a fundamental data manipulation task. Frequently, you’ll need to initialize these new columns with a default value. This article explores two efficient methods for achieving this in Pandas: pandas.DataFrame.assign() and pandas.DataFrame.insert(), highlighting their differences and best use cases. Table of Contents Using pandas.DataFrame.assign()…