Drawing your first plot
To get a first feel for ggplot2
, let's try to run some basic ggplot2
commands. The mtcars
dataset contains information on 32 cars from a 1973 issue of Motor Trend magazine. This dataset is small, intuitive, and contains a variety of continuous and categorical variables.
This exercise is part of the course
Introduction to Data Visualization with ggplot2
Exercise instructions
- Load the
ggplot2
package usinglibrary()
. - Use
str()
to explore the structure of themtcars
dataset. - Submit the code. This will execute the example code. See if you can understand what
ggplot
does with the data.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Load the ggplot2 package
___
# Explore the mtcars data frame with str()
___
# Execute the following command
ggplot(mtcars, aes(cyl, mpg)) +
geom_point()