qplot(disp, mpg, data=mtcars) generates a scatterplot. A scatterplot from ggplot2 using the qplot () function. The qplot default starts the y axis at a value that makes sense to R.

Below is a cheat sheet, easily searchable by task, to see just how to do some of favorite and most-used ggplot2 options — everything from creating basic bar charts and line graphs to customizing ...

This short course will start by making simple graphics in ggplot2 that are similar to plots made in R using the plot () function. It will then delve into the more complex, layer-based graphics that ...