Clustering via tree mapping: fantastic data visualization

How do you empirically score the importance of a gazillion science journals, and show the results in 10 seconds?

Here is a fantastic example of clustering via tree mapping (using Flare), produced by and Moritz Stefaner, a noted data visualization designer. The interactive  shows how different scientific journals are scored according to a value called an Eigenfactor score–the relative importance of a journal in its field. The score essentially counts the number of citations tracking back to a particular journal and–more importantly–the significance of those citations. The tree map is interactive and the interface intuitive–clicking on a particular cluster shows the path of incoming and outgoing citations (and their relative importance). Wow. I’m in love.

The tree mapping interactive is one of four very cool data visualizations (built using Flare)  that has developed–all of which attempt to show information flow in science. Citation patterns, change over time and information mapping are the others. I’ll write about these in later posts, but suffice it to say that you can spend hours on these.

Eigenfactor clustering via treemapping


Soccer and treemapping: infographic

Remember Hans Rosling’s 200 Countries in 200 Years, the four-minute snippet of the Joy of Stats documentary? If only all data visualizations could convey the energy of this passionate four-minute narration, we wouldn’t be be writing cheeky/snarky commentaries on bad infographics–we’d all be learning R or something, I guess.

Perusing the interwebs in search of entertainment, accuracy and clarity, and lamenting the fact that my toddler has encroached upon my ability to watch uninterrupted fútbol, I came across a nice example of tree mapping–clear and to the point. More importantly, it shows where the Premier League spent its precious pounds on transfer players in 2011. Wondering if we’ll see more transfer scandals like Tevez and West Ham, but that’s a different blog, I suppose.

If you’re interested in tree maps, read the 10 Lessons in Treemap Design by Juice Analytics. Yes, it was written waaaay back in 2009 but still holds true, IMHO.

Premier League soccer transfer spending 2011