DIY R package workshop

Hello! Welcome! 👋

For this interactive workshop, we will be making ohwhaley the R package together 🐋

Participants should have the following ready for the workshop

• The most recent version of R (≥ 4.1) and RStudio (≥1.4) installed
• The following package(s) and their dependencies installed: devtools, testthat, knitr
• Basic understanding of how to write a function
• Basic usage of git *optional but recommended
• Basic understanding of project directories and .Rproj files

For the workshop, we will be working from main_functions.Rmd

This file is also neatly rendered here: https://fontikar.github.io/DIY_Rpkg/

I have included the clipboard function for each chunk so its easier for everyone to follow along the workshop!

Meta data

I have also provided the bulk of the code in templates/:

• say.R R script containing the say() function for ohwhaley
• phrases.R R script containing phrases used by say()
• test-say.R R script containing a simple test for say()
• roxygen_template.R R script containing roxygen documentation for say()
• data_template.R R script containing roxygen template for documenting external data
• example_README.Rmd Rmd file for the README
• example_vignette.Rmd Rmd file for the vignette

I have also included my slides in slides/

Read more about R packages, I recommend the 2nd Edition of The R packages book by Hadley Wickham and Jenny Byran

Overview of workshop:

1. What is an R package?
2. Why make an R packge [a group discussion]
3. The mise en place

• R and RStudio
• git and GitHub *optional, but recommended

4. The basic packages

• devtools
• usethis
• testthat
• roxygen2
• knitR

5. Lets get coding! [the interactive part!]

• The main set up
• Your first function
• Document it!
• README
• Vignette
• Tests

6. What makes a good R package? [a summary discussion] *if there is time
7. Summary

Additional resources

If you want to give your package something extra:

• Badges in your README
• Hexsticker in your README and to print 😍
• Pkgdown website
• Continuous integration using GitHub Actions