This document will help you to install a working evironment consinsting of R, RStudio and some R packages and further utilities.
To begin with, you will need to install R and RStudio for your platform. On a Mac, you need to install XQuartz (https://www.xquartz.org) before installing these.
git might be installed on your machine (if you have a Mac with OSX or a Linux machine).
If git is not installed, you can find the current version at https://git-scm.com
Start RStudio and create a new R Markdown file. You will be prompted to install a few packages. Lett RSdution install these packages.
In the next step, you have to set up a GitHub account at https://github.com
To be able to contribute to repositories, some further work is needed.