Using cairographics with ggsave()

October 12, 2012
By

(This article was first published on is.R(), and kindly contributed to R-bloggers)

Whenever possible, I try to save R graphic output in a vector format, typically pdf(). I also like to use the handy ggsave() function to do so, as it streamlines the process, and makes it easy to be consistent across formats.

However, at times it is necessary to use a bitmap graphical format, in which case I always prefer to use .pngs. The only downside is that, in Windows at least, png() produces non-anti-aliased graphical elements.

There is, of course, a package for that, called Cairo, which uses cairographics to produce bitmap images with transparency, alpha levels, and anti-aliasing. However, I could never figure out how to use Cairo with ggsave(), until now:

To leave a comment for the author, please follow the link and comment on his blog: is.R().

R-bloggers.com offers daily e-mail updates about R news and tutorials on topics such as: visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...



If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook...

Tags: , , , ,

Comments are closed.