Aggregating Daily Returns Across Multiple Dates in R

How to Aggregate Columns in R Based on Values from Another Column Factor

Troubleshooting Unique Row Issues in SQL Queries Due to Incorrect Use of DISTINCT Keyword

Advanced Grouping in R using the `ave()` Function

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

Unlocking Unique Words by Group: Advanced Data Transformation Techniques in R

Reshaping Wide Data to Long Format with Tidyverse's pivot_longer Function in R