Brandon Hurr on using the map & walk functions in the purrr package

Brandon Hurr gave a great tutorial & presentation on using the purrr package, and specifically on using the two key function families map and walk functions. From Brandon:

Overview

map() and walk() and their derivatives are functional programming tools that are part of the tidyverse set of packages, and in particular the purrr package.

The presentation and tutorial cover the following:

• Data types in R
• Functions in R
• Iteration in R (for loops)
• map()
• walk()

Slide Presentation:

• Fullscreen

Materials

• Source materials on Github
  • Presentation
  • Coding Notebook

Important tips

• In order for you to get the most out of this tutorial I have produced an R markdown document that will let you follow along with all of the functions and examples that I will present. This document uses functions that transverse the tidyverse and therefore I would ask that if you plan to follow along on your computer that you install the tidyverse.”

  • install.packages("tidyverse")