https://openclassrooms.com/fr/courses/4525256-initiez-vous-au-langage-r-pour-analyser-vos-donnees/
http://swcarpentry.github.io/r-novice-inflammation/09-supp-intro-rstudio/index.html
http://swcarpentry.github.io/r-novice-gapminder/01-rstudio-intro/index.html
https://r.developpez.com/tutoriels/introduction-r-et-rstudio/ https://r4ds.had.co.nz/index.html
