Simon Willison’s Weblog

An Easy Way to Make a Treemap. The second in Flowing Data’s handy series of R tutorials.

Posted 11th February 2010 at 10:29 am

Recent articles

Introducing Showboat and Rodney, so agents can demo what they’ve built - 10th February 2026
How StrongDM's AI team build serious software without even looking at the code - 7th February 2026
Running Pydantic's Monty Rust sandboxed Python subset in WebAssembly - 6th February 2026

flowingdata 1 r 2 treemap 2 visualisations 3

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe