Understanding Nested Lists with Map and list.dirs in R: Mastering Hierarchical Data Structures for Effective Data Analysis.

Handling Non-ASCII Characters in R: A Step-by-Step Guide to Cleanup and Standardization

Mastering Purrr's map_dfc: A Comprehensive Guide to Handling Diverse Data Files in R

Resolving Unused Argument Errors While Grouping within Functions in R

Using R's Dplyr Package for Efficient Grouping and Summarization with Multiple Variables

Here is the code with explanations and improvements.