Finding the Date with Maximum Value Occurred for Each Group of Four Consecutive Calendar Months Using Pandas in Python

Grouping Occurrences by Year in a Pandas DataFrame: A Step-by-Step Guide

Custom Aggregation on Fields in Data Frame Using Python

GroupBy Aggregation Errors in Pandas: A Deep Dive into Reindexing

Understanding GroupBy Statements in Pandas: 3 Ways to Get the Largest Total for Each Major Category

3 Ways to Concatenate Python DataFrames Based on Unique Rows

Filling Missing Date Columns using Groupby Method with Pandas

Grouping by Multiple Columns and Counting Directly in a Pandas DataFrame: A Comprehensive Guide

Creating a Dictionary from a Pandas DataFrame by Grouping Rows Based on Certain Conditions Using groupby and apply

Sorting and Grouping Pandas DataFrames for Selecting Multiple Rows Based on High Values