Practical how-tos on how to make any chart and apply methods to your own data.
Oftentimes, you'll want to fit a line to a bunch of data points. This tutorial will show you how to do that quickly and easily using open-source software, R.
If your data is a hierarchy, a treemap is a good way to show all the values at once and keep the structure in the visual. This is a quick way to make a treemap in R.
A heatmap is a literal way of visualizing a table of numbers, where you substitute the numbers with colored cells. This is a quick way to make one in R.
You’ve seen the NameExplorer from the Baby Name Wizard by Martin Wattenberg. It’s…
There are about a million ways to make a choropleth map. The problem is that a lot of solutions require expensive software or have a high learning curve. It doesn't have to be that way.
You can use the vector-based software normally reserved for designers and artists to make and edit charts.
Following up on my post last week about using Twitter to track eating…
Weather Underground is a useful site and a fun place for weather enthusiasts.…