Visualizing Patterns over Time - Data Points: Visualization That Means Something - page 113

Because of this, the value axis of scatterplots doesn't always have to start
at zero, but it's usually good practice.
CrEATE A SCATTErPLoT
R makes it easy to create a scatterplot via the plot() function, but you can
use variations, depending on what data you look at. Figure 4-25 shows the
final graphic.
FIGurE 4-25 Scatterplot created in R and designed in Illustrator