How to draw venn pie-agram (multi-layer pie chart) in R?

eagereyes 2014-09-26

(This article was first published on One Tip Per Day, and kindly contributed to R-bloggers)

I was wondering how to draw a venn diagram like pie chart in R, to show the distribution of my RNA-seq reads mapped onto different annotation regions (e.g. intergenic, intron, exons etc.). A google search returns several options, including the nice one from Xiaopeng's bam2x (see below). However, he told me it's not released yet. And it's javascript based.

Why not I just make one in R?

Here is the design scratch:

And here is example code:

Here is output:

You can also use par(mfrow=c(n,m)) to put multiple venn pieagram in one figure.

To leave a comment for the author, please follow the link and comment on his blog: One Tip Per Day.

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...