Visualizing various types of data

Lecture 4

Dr. Mine Çetinkaya-Rundel

Duke University
STA 199 - Fall 2022

9/8/22

Warm up

Announcements

HW 1 posted this evening, due 11:59pm on Thursday, Sep 15

Wrap up `ae-01`

Any questions from Part 1?
Demo: Part 2

Identifying variable types

Identify the type of each of the following variables.

Favorite food
Number of classes you’re taking this semester
Zip code
Full name
Age

02:00

Questions from the prepare materials?

The way data is displayed matters

What do these three plots show?

Three representations of the same data: Bar plot of means, box plots, histograms.

Source: #barbarplots

Application exercise

`ae-02`

Go to the course GitHub org and find your ae-02 (repo name will be suffixed with your GitHub name).
Clone the repo in your container, open the Quarto document in the repo, and follow along and complete the exercises.
Render, commit, and push your edits by the AE deadline – 3 days from today.

Recap of AE

Pick geoms based on data types.
Set appropriate binwidths for histograms.
Turn off legends when they provide redundant information with show.legend = FALSE.
Create plots with multiple geoms, and pay attention to order.