Lecture 4
Manipulating and Summarizing Data
October 21, 2025
Slides & Code
HTML slides • Raw qmd file • R Code
Suggested Reading (from R for Data Science (2e)1)
Chapter 4: Data transformation • Chapter 13: Logical vectors • Chapter 20: Joins
1 Hadley Wickham, Mine Çetinkaya-Rundel & Garrett Grolemund