Data Processing and Visualization in R

Jeff Stevens (he/him)

2025-01-22

Course introduction

Course goal

Source: Allison Horst

Course information

Course structure and materials

• Before class: Readings

• During class: Coding

• After class: Exercises

• Student and coding hours

• Course website: dpavir.org

Course information

Assignments

• Learning journal
• Exercises
• Check-ins
• Projects
• Wrapped

Course information

Diversity, inclusion, wellness

Source: Allison Horst

Course information

Course culture

• Futz around and find out

• Mistakes are OK (they’ll happen a lot)

• Learn from your mistakes (bug journal?)

• Ask for help

• Share successes and failures with others

Questions

Questions about R or the course?

R Introduction

Conventions

• All code is in monospace font purple text

• R functions end with parentheses: function()

• Directory names end with slash: home/

• Package names are surrounded by curly braces: {tidyverse}

• Keyboard buttons separate keys with a plus: Ctrl+S

• These are parentheses (), brackets [], and braces {}

• Links are in light blue text

Mental model of R

Base R vs. tidyverse

Let’s code!

Introduction coding