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

SQL Window Functions: Summing Values Across Categories Within a Variable

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

Mastering the Aggregate Function in R: Handling Missing Values and Simplification

Aggregating Rows with Shared Values and Simultaneously Choosing a Value in a Separate Column

Using Aggregate with a Complex FUN Argument in Circular Data Analysis: A Deeper Dive

Aggregating and Conditional Outputs in R Using data.table