Splitting a Pandas DataFrame into Equal Number of Groups Based on One Specific Column

Using Melt to Loop Over a Vector in Data.table: Filtering and Summarizing with by

Understanding naniar with dplyr: Navigating Changes in R's Grouping Functionality

Grouping Dataframe by Similar Non-Matching Values: A Step-by-Step Solution

Grouping by Series or Sequence in R Using data.table Library