1. Install R and RStudio | 2. Install the course | 3. Check your setup | 4. Start learning | Keep the crib sheet open | Finishing a lesson | If something goes wrong

"package 'gradethis' is not available for this version of R" | "The tutorial is missing required packages and cannot be rendered" | "Error: unexpected input" when pasting a command | "HTTP error 403" or "API rate limit exceeded" | Nothing installs at all | Installs fail partway, or packages vanish after a restart | The console has no > prompt, or looks frozen | "No tutorials found for package 'r4clinstats'" | "there is no package called 'reformulas'" | Still stuck?