Lecture 6: Factors, Intermediate dplyr

Info and Materials

• Date: July 15, 2025
• Topics: Using Factors in R, Deep Dive into dplyr
• Slides: View Slides
• Code: usethis::use_course("csp-materials/factors-more-dplyr")

Learning Objectives

• Understand what factors are in R and how to use them effectively
• Strengthen and expand your ability to manipulate data using dplyr functions (“verbs”)

Before Class

• Review the Lecture 5 materials to get ready for today’s in-class quiz
• Bring your laptop to every class

Readings

Skim the readings before or after class to get the big picture and prep for quizzes and assignments:

• “Chapter 16 Factors” from “R for Data Science” 2nd Edition
• “Chapter 3 Data Transformation” from “R for Data Science” 2nd Edition (This is the same Chapter from Lecture 4)