Difficulty level: Beginner
Licence: Creative Commons Attribution-NonCommercial 4.0
R Basics Quiz
https://edu.isb-sib.ch/course/view.php?id=52
https://tess.elixir-europe.org/materials/r-basics
How to learn R basics

Difficulty level: Beginner
Licence: Creative Commons Attribution-NonCommercial 4.0