Scatterplots in ggplot2
Completion requirements
You will learn the layered syntax of ggplot2 for scatterplots in this section. It also demonstrates how regression lines can be added (compared with the base-R syntax shown in the introductory video).
Label points in the scatter plot
The function geom_text() can be used:
ggplot(mtcars, aes(x=wt, y=mpg)) + geom_point() + geom_text(label=rownames(mtcars))
