Faceted histogram
In this chapter, you'll be working with the cars dataset, which records
characteristics on all of the new models of cars for sale in the US in a certain year.
You will investigate the distribution of mileage across a categorical variable, but
before you get there, you'll want to familiarize yourself with the dataset.
This exercise is part of the course
Exploratory Data Analysis in R
Exercise instructions
The cars dataset has been loaded in your workspace.
- Load the
ggplot2package. - View the size of the data and the variable types using
str(). - Plot a histogram of
city_mpgfaceted bysuv, a logical variable indicating whether the car is an SUV or not.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Load package
# Learn data structure
# Create faceted histogram
ggplot(cars, aes(x = ___)) +
geom_histogram() +
facet_wrap(~ ___)