Creating a Database Column Based on an Existing Column in SQL.

Understanding the Power of R's `exists()` Function: Environment Variables for Object Existence Checks

Returning Data Frames from R Functions: Best Practices and Considerations

Mutating Across Multiple Columns Based on a Condition in dplyr

Extracting Transaction Type from a Large Transaction Log Dataset using R: A Comprehensive Guide

Overcoming the Limitations of R's Built-in Gamma Function: A Guide to Log-Gamma Computation

Building a Scalable Simulator in R: Abstraction and Refactoring Strategies for Efficient Card Dropping Simulations

Passing the Environment of a Row from a data.table to a Function in R

Here is the final answer:

Understanding the Pivot Wider Function in R: A Comprehensive Guide to Data Transformation