Lecture 3

Overview

• Think at programming as a form of problem solving
• Learn the most important dplyr “verbs” for data manipulation
• Familiarize with “pipes”
• Understand and correctly utilize logical operators

Before class

• This applies ONLY if you have installed R/RStudio locally (ignore this if you are using Workbench):
  • Install the rcis library by running the command remotes::install_github("css-materials/rcis") in your console. We will be using data from this package in class.
  • If you do not already have the remotes library installed, you will get an error. Install it first running install.packages("remotes")

Readings

Data transformation with dplyr:

• Read “Chapter 3 Data transformation” from “R for Data Science” 2nd Edition. To be able to follow today’s lecture, you need to read this chapter!
• dplyr Cheat Sheet
• dplyr Documentation

Class materials

Run the code below in your console to download today’s materials: usethis::use_course("css-materials/data-transformation")