Joining Subqueries as Where Arguments: A Powerful Technique for Filtering Data

5 Ways to Re Structure R Data from Long-Wide to Wide Format Using Dplyr and Other Methods

Aggregating Beta and Co-Skewness per Year Using User-Defined Functions and Regression Analysis in R

Counting Rows Per Group in R Data Frames Using Multiple Methods

Decomposing Time Series Data in R using stats Package and data.table Alternative Methods