Transforming Wide Format Data to Long Format in R with Grouping and Summarization Techniques

Faster Function Than Aggregate() in R: A Comparative Analysis of Tidyverse, Base Functions, and Plyr Packages for Data Aggregation.

Aggregating Big Data in R: Efficient Methods for Removing Teams with Variance

Aggregating Every 4 Rows into a Month: A Base R Solution for Data Analysis

How to Use R's Averaging Function to Identify Courses with Interventions for Each User