Xan Gregg
Xan Gregg RSS
JMP Development

Xan Gregg is a JMP Development Senior Manager with expertise in data visualization and scripting. In 2006, he won first place in Business Intelligence Network’s Data Visualization Competition. Gregg has worked for JMP for ten years and is the inventor of Graph Builder. He holds a Bachelor of Science in computer engineering from Clemson University.

Recent Posts

Graph makeover: Fractal scatterplot

One of the marvels of the Internet is the Online Encyclopedia of Integer Sequences (OEIS). Started 50 years ago by Neil J. A. Sloane (pic) ... Read More

Graph makeover: 3-D yield curve surface

A couple weeks ago, The Upshot section of The New York Times produced this "glorious" interactive 3-D graph of the last 25 years of US Treasury ... Read More

John Tukey on the rule of zero-origin scales

I saw the following post recently on Twitter: Eric Jonas @stochastician Mar 16 There’s basically never a reason to start the y-axis of ... Read More

#OneLessPie chart on Pi Day 2015

Last year, we launched the #OneLessPie initiative to use Pi Day (March 14 or 3/14) as a catalyst to improve the data visualization landscape. Many ... Read More

JMP graphics tip: Alphabetic markers

Someone recently asked me about using letters instead of built-in symbols in JMP scatterplots. In case others are wondering the same thing, here's the long ... Read More

Graph makeover: Disposable income change chart

Kaiser Fung recently critiqued this chart of changes on disposable income. He put forth the idea of using categorized slope graphs instead: How do we ... Read More

Graph makeover: Measles heat map

The Wall Street Journal recently published a nice, interactive graphic piece called "Battling Infectious Diseases in the 20th Century: The Impact of Vaccines," which contains ... Read More

Dual-scaled jobs chart deconstructed, part 2

In my previous post, I examined how the dual scales on this jobs chart are sending an inaccurate message. But my efforts to remake alternate ... Read More

Dual-scaled jobs chart deconstructed, part 1

I saw this "really striking" jobs chart on Twitter recently. Can you see why the data is not as striking as it appears?   It certainly looks ... Read More

Coming in JMP 12: Graph Builder improvements

Ease-of-use and convenience functionality have been the focus of graphics work for JMP 12. The most prominent ease-of-use change is the drop zones in Graph Builder, ... Read More