It shows the individual values as they compare to the whole. Rectangles are arranged to maintain hierarchy.
Tutorials and Guides
How to Visualize Hierarchical Graphs in R, with ggraph and tidygraph
Network graphs are a good way to find structure and relationships within hierarchical data. Here are several ways to do it.
How to Visualize Proportions in R
There are many ways to show parts of a whole. Here are quick one-liners for the more common ones.
How to Make an Interactive Treemap
Treemaps are useful to view and explore hierarchical data. Interaction can help you look at the data in greater detail.
Breaking down the $4 trillion bailout
Using a straightforward treemap, The Washington Post looks at where the $4 trillion…
Who Funds the World Health Organization
A couple of weeks ago — or maybe it was a couple of years ago, I’m not sure — the administration announced it would withdraw funding from the World Health Organization. Here's what that does to the overall picture.
Comparing the potential cost of Medicare for everyone
For The Upshot, Josh Katz, Kevin Quealy, and Margot Sanger-Katz, consulted economists to…
How We Spend Our Money, a Breakdown
We know spending changes when you have more money. Here's by how much.
Jobs Charted by State and Salary
Jobs and pay can vary a lot depending on where you live, based on 2013 data from the Bureau of Labor Statistics. Here's an interactive to look.
Ben Shneiderman invented the treemap in the 1990s to visualize the hierarchical contents…
Exploratory treemap for Obama’s 2012 budget proposal
It’s that time of year again. Obama recently released his 2012 budget proposal…