#+date: <2016-10-05 21:48:11 +0800>
#+title: Facet labels in R.
-#+filetags: R graph code
+#+filetags: :R:graph:code:
Getting used to the grammar of ggplot2 takes some time, but so far it's not been disappointing. Wanting to split a
scatterplot by segment, I used =facet_grid=. That by default shows a