Expanding Columns in R Using data.table: A Step-by-Step Guide

Understanding Workarounds for Triggering Code When Signing Out in ShinyProxy

Selecting Multiple Values from Two-Dimensional DataFrames in R

Merging Rows Based on Conditional Criteria in DataFrames Using SQL

Here is a complete version of the provided code with some improvements for better readability and maintainability:

Condensing Row Categories and Splitting Counts in R: A Comparative Analysis of Three Approaches

Converting Text Files to Colon-Separated Files with R: A Step-by-Step Guide

Reordering Columns Dynamically in a Data Frame Using dplyr in R

Renaming Duplicated Column Names in R: A Step-by-Step Guide

Creating High-Quality Plots in Base R and ggplot2: A Comprehensive Guide