Splitting a DataFrame Column into Two and Creating MultiIndex with Pandas

Change Year in pandas.DataFrame

Removing Unwanted Numbering with Regular Expressions in R

Transforming Nested Lists into a Single Data Frame in R: A Comparative Approach

Adding Total Column to Pandas DataFrame with Filtered Criteria Using Two Approaches

Fixing the Ordering in a Pandas DataFrame: A Step-by-Step Guide for Preserving Original Order

Working with Pandas DataFrames: A Deep Dive into the `map()` Method

Numerical Data Insertion into DataFrame Becomes NaNs: A Common Problem in Data Manipulation

Reindexing Pandas DataFrame MultiIndex while Maintaining Structure

Parsing Multiple Columns from Dictionary Column in Pandas DataFrame