Group By with Multiple Variables in R: A Deep Dive into Dplyr's Power

Grouping Data by Categorical Variable and Summarizing Top Values with Counts in R Using dplyr Package

Grouping Multicode Question Responses by Month Using R with dplyr and tidyr

Summarize Variables in a data.table using Objects: Two Solutions for Efficient Data Manipulation

Mastering dplyr: A Powerful Approach for Data Manipulation in R