Overview

• Introduce relational data
• Demonstrate how tables can be linked to one another
• Demonstrate methods in dplyr for linking and merging related tables
• Practice joining tables
• Review factors

Before class

• Read Chapter 13 “Relational Data” in R for Data Science. Do not complete exercises 13.4.6.2-3 – we will be completing these as in-class exercises
• Review Chapter 15 “Factors” in R for Data Science

Class materials

• Practice using relational data

What you need to do after class

• Keep working on homework 3
• Review lectures and readings