The goal of tagger is to easily add tags to facetted plots in order to identify panles.

Installation

You can install the development version from GitHub with:

# install.packages("devtools")
devtools::install_github("eliocamp/tagger")

Example

In the default usage, you can simply add tag_facets() to add a tag to each panel of a ggplo2 plot.

library(tagger)
library(ggplot2)

ggplot(mtcars, aes(hp, mpg)) +
   geom_point() +
   facet_grid(cyl ~ vs) +
   tag_facets()

If you want to tag rows and columns instead of each panel indivdually, you can set it with the tag argument.

ggplot(mtcars, aes(hp, mpg)) +
   geom_point() +
   facet_grid(cyl ~ vs) +
   tag_facets(tag = "rc")