Like many (most?) users of the
ggplot2 visualization package, I often find myself (re-)looking up how to do specific tasks. In an effort to streamline by Googling and avoid searching over and over again for solutions to the same issues, this post will gather together some of the assorted tips and tricks that I’ve recently looked up.
Including an inset graph
I found this tip here, using the
cowplot package. The
height parameters in the
draw_plot function can be used to adjust the position and size of the inset graph.
library(ggplot2) library(cowplot) data(mtcars) main_plot <- ggplot(mtcars) + geom_point(aes(x=mpg, y=disp, color=factor(cyl))) + scale_color_discrete(name = "Cylinders") + theme_classic() inset_plot <- ggplot(mtcars) + geom_density(aes(x=mpg, fill=factor(cyl), color=factor(cyl)), alpha = 0.35) + guides(fill=FALSE, color=FALSE) + theme_classic() plot_with_inset <- ggdraw() + draw_plot(main_plot) + draw_plot(inset_plot, x = 0.4, y = 0.6, width = 0.4, height = 0.4) plot_with_inset