# -*- mode: snippet -*-
# name: r image-ggplot
# key: r-imgg
# --
#+begin_src R :session *R* :results output graphics file :file notebooks/plots/${1:file}.png
library(ggplot2)
library(scales)
data <- $2
theme_set(theme_gray(base_size = 6))
gg <- ggplot(data, aes())
gg <- gg + <type of plot>
gg <- gg + scale_x_discrete("X title")
gg <- gg + scale_y_continuous("Y title")
gg <- gg + ggtitle("")
gg <- gg + theme(plot.title = element_text(hjust = 0.5))
gg
#+end_src