1 Section

This is a section.

2 Embedding Code

Backticks set off code, and perform calculations. The product of 3 and 4 is 12.

The code below loads several packages.

library(lintr)
library(rmarkdown)
library(ggplot2)

The code below plots a figure.

data(mtcars)
ggplot(mtcars, aes(mpg, wt)) + geom_point() + geom_smooth()