Treebase trees from R

May 3, 2011

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

Treebase is a great resource for phylogenetic trees, and has a nice interface for searching for certain types of trees. However, if you want to simply download a lot of trees for analyses (like that in Davies et al.), then you want to be able to access trees in bulk (I believe Treebase folks are working on an API though). I wrote some simple code for extracting trees from

It reads an xml file of (in this case consensus) URL’s for each tree, parses the xml, makes a vector of URL’s, reads the nexus files with error checking, remove trees that gave errors, then a simple plot looking at metrics of the trees.

Is there an easier way to do this?

To leave a comment for the author, please follow the link and comment on their blog: Recology. offers daily e-mail updates about R news and tutorials on topics such as: Data science, Big Data, R jobs, 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.

Search R-bloggers


Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)