R: Vignettes and other documentation

# Vignettes and other documentation

## Vignettes from package 'ggplot2'

ggplot2::extending-ggplot2 |  | Extending ggplot2 | HTML | source | R code
ggplot2::ggplot2-in-packages |  | Using ggplot2 in packages | HTML | source | R code
ggplot2::ggplot2-specs |  | Aesthetic specifications | HTML | source | R code
ggplot2::ggplot2 |  | Introduction to ggplot2 | HTML | source | R code
ggplot2::profiling |  | Profiling Performance | HTML | source | R code