R and RStudio are two different programs that work together. R is the programming language and RStudio is this is a front end program that lets you write R code, view plots, etc. Each program must be downloaded separately.
2. Click Download R for (Mac) OS X.
3. Check the Latest release: section for the appropriate version and follow the directions for download.
4. Once the file download is complete, click to open the installer. Click Continue and proceed through the installer.
5. Once the R installer has finished, click Close.
6. Next, download RStudio. Go to https://posit.co/downloads/
7. Click Download RStudio.
8. Once the file download is complete, click to open the installer. Drag RStudio into your applications folder.
9. Once the installation is complete, R and RStudio will open.
