As nicely written by Hadley Wickham R guru, 'Good coding style is like correct punctuation: you can manage without it, butitsuremakesthingseasiertoread.' In this session, we will review good practices to write R code : 1) style advises, 2) versioning with git. In a first part, we will present some ideas of the tidyverse style guide (following http://style.tidyverse.org/) , the second part will bedevoted to handle the integration between R and Git inside Rstudio. Asan exercise, we will provide you a Rmarkdown file to create a R packagein order to put in practice the previous recommendations and turnpersonal code into reusable code (following http://r-pkgs.had.co.nz).

Make sure that the following packages are installed on your computer : git, R, RStudio, Rmarkdown, and Roxygen.