R

Installation

$ brew tap homebrew/science
$ brew install R

You will probably also want to install a few of Hadley Wickham’s packages
$ R                                  // Launches R
    > install.packages("ggplot2")    // Offers a powerful graphics language for creating elegant and complex plots
    > install.packages("dplyr")      // Makes describing the steps and program execution, fast and easy
    > install.packages("tidyr")      // Makes it easy to tidy your data

When you exit the R prompt, make sure to save the workspace image if you want to avoid downloading the same
packages again in future.

Install RStudio

RStudio is relatively lightweight and runs without using too much system resources

Download and install from:
https://www.rstudio.com/products/RStudio/#Desktop

Install MacTex

To export Rmarkdown documents as PDFs, to share analyses with colleagues, RStudio requires MacTeX. The installer for
the full version of MacTeX is giant (~3GB), but worth it if you plan to share your work as a PDF. Unless you’re
experienced with MacTeX, go with the full MacTeX installation rather than BasicTeX.

Download and install from:
https://tug.org/mactex/