Engineering Fellow at JMP, focused on #DataViz, preferring smoothers over fitted lines. Creator of JMP #GraphBuilder and #PackedBars chart type for high-cardinality Pareto data. #TieDye #LessIsMore
Xan Gregg
Loading...
#stats #rstats
If you use or teach EDA, you might be interested to learn a bit of its #history, from a _Nightingale_ article a few years ago.
Sort of an ethnographic study of those who actually developed EDA
nightingaledvs.com/remembrances...
Is it a treemap? Is it a bar chart? It's a packed bar chart!
Bonus chart from my look at the data behind Le Baguette Index: number of participating bakeries in each city. Almost 1/5 are in Paris. #dataviz
A chess position recall study was lacking any charts, so I made one. The way the curves start to separate for advanced players is potentially interesting, but it's driven by just three participants and the Elo scores are very rough estimates. #dataviz www.tandfonline.com/doi/full/10....
Here's my remake as a stacked area chart. #dataviz Either my data extraction was bad or the original proportion chart has some undocumented smoothing. I applied a 3-value weighted smoothing of the counts.
Weekly Bluesky posts tagged as #dataviz or #datavis. Highlighting #30DayChartChallenge and #30DayMapChallenge. Are the 30day challenges really so prominent, or so they weigh more heavily in the searchPosts api results?
How would you remake this #dataviz from Nature? My wrong first impression was that ChatGPT usage is declining after being steady at 1%. Scraped data values are in the ALT text in case anyone wants to try it. Original source is pubsonline.informs.org/doi/10.1287/....
The baguette prices at lebaguetteindex.fr present an interesting #dataviz challenge: 1500+ bakeries with very few unique prices. I'm not exactly sure of their jitter method, but I tried a few myself at rawdatastudies.com/2026/06/04/j....
I'm puzzled by this paper's lead chart. Connecting socioeconomic status levels emphasizes that difference, which is not the point of the paper. I reordered the data to connect across time points which helps see the gap widening over time and a different trend shape for the P and HP schools. #dataviz
Round 2 of my paired univariate chart survey is open for public testing. Now with a binary response (same or different) and fewer trials (72). See if you can beat my score. #dataviz pairstudy121.pages.dev?group=b3
Beeswarm makeover as a slightly smoothed Wilkinson dot plot. Original from www.nature.com/articles/s41.... Another difference: original violins have equal widths; mine have equal areas. #dataviz
Xan Gregg
Xan Gregg
Published for Tukey Day, June 16, the 107th anniversary of John Tukey's birth This article recounts the origins and influences of the movement in...
This study of four cohorts of French schoolchildren shows that the gender gap in math (girls falling behind) begins essentially immediately as soon as kids start school. They use the natural variation in kids' ages at school start to show that it's school entry, not age, that triggers the change.
Boys and girls exhibit very similar maths scores upon school entry, but a gender gap in favour of boys becomes highly significant after 4 months of schooling, which increases with years of schooling,&...
