Week 7

Drawing Maps

This week, we’ll learn to draw maps to represent geographic data with ggplot. We’ll discuss both the code you need and the aesthetic choices you should be aware of when working with spatial data.

Reading Assignments

Next week, we play with interactive maps using the leaflet package. Before then, please read:

• Introduction to Leaflet
• The Map Widget
• Using Basemaps
• Adding Markers
• Colors
• Legends
• Choropleths

Team Project

Draw a map with R illustrating some interesting data. Anything you choose. If you need ideas, consider:

1. A state-level map of answers to a question in the Cooperative Election Study 2020.

2. A world map of answers to a question in the World Values Survey.

3. A county-level map of COVID-19 infections from the NYT repository.