Based on the official CRAN guidelines on Writing R Extensions and the Hadley Wickham book R Packages. This guide assumes a basic working knowledge of how to use libraries in R and versioning control like Git. I often use the syntax library::function() to call external libraries. Tools * devtools for

It is easy to write slow code in R due to the ecosystem it provides. When processing vast amounts of data, the performance of code is critical to minimize execution time. There is a limitation on how fast R can go, but with knowledge of how code is executed and