Specialty plots

19 posts
The Periodic Table, a challenge in information organization

Reader Chris P. points me to this article about the design of the Periodic Table. I then learned that 2019 is the “International Year of the Periodic Table,” according to the United Nations. Here is the canonical design of the Periodic Table that science students are familiar with. (Source: Wikipedia.) The Periodic Table is an exercise of information organization and display. It's about adding structure to over 100 elements, so...

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Bar-density and pie-density plots for showing relative proportions

In my last post, I described a bar-density chart to show paired data of proportions with an 80/20-type rule. The following example illustrates that a small proportion of Youtubers generate a large proportion of views. Other examples of this type of data include: the top 10% of families own 75% of U.S. household wealth (link) the top 1% of artists earn 77% of recorded music income (link) Five percent of...

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Visualizing the 80/20 rule, with the bar-density plot

Through Twitter, Danny H. submitted the following chart that shows a tiny 0.3 percent of Youtube creators generate almost 40 percent of all viewing on the platform. He asks for ideas about how to present lop-sided data that follow the "80/20" rule. In the classic 80/20 rule, 20 percent of the units account for 80 percent of the data. The percentages vary, so long as the first number is small...

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Pretty circular things

National Geographic features this graphic illustrating migration into the U.S. from the 1850s to the present.   What to Like It's definitely eye-catching, and some readers will be enticed to spend time figuring out how to read this chart. The inset reveals that the chart is made up of little colored strips that mix together. This produces a pleasing effect of gradual color gradation. The white rings that separate decades...

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Trump resistance chart: cleaning up order, importance, weight, paneling

Vox featured the following chart when discussing the rise of resistance to President Trump within the GOP. The chart is composed of mirrored bar charts. On the left side, with thicker pink bars that draw more attention, the design depicts the share of a particular GOP demographic segment that said they'd likely vote for a Trump challenger, according to a Morning Consult poll. This is the primary metric of interest,...

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McKinsey thinks the data world needs more dataviz talent

Note about last week: While not blogging, I delivered four lectures on three topics over five days: one on the use of data analytics in marketing for a marketing class at Temple; two on the interplay of analytics and data visualization, at Yeshiva and a JMP Webinar; and one on how to live during the Data Revolution at NYU. This week, I'm back at blogging. McKinsey publishes a report confirming...

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Plotted performance guaranteed not to predict future performance

Kaiser Fung (Junkcharts, Principal Analytics Prep) finds a chart on French financial instruments conveys a misleading message on relative returns while failing to describe the relative risks.

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Foodies say, add dataviz spice please

This Buzzfeed article proves that foodies love their food served with dataviz (tip: Chris P.). Menus are an undertapped resource when it comes to data visualization. There are several examples worth discussing. Venn diagrams are not easy to read, people. Plus they are hard to construct well... note the asymmetric areas. Here is one without circles: Then, I pared it down to its essence: *** This beer map is pretty...

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Fifty-nine intersections supporting forty dots of data

My friend Ray V. asked how this chart can be improved: Let's try to read this chart. The Economist is always the best at writing headlines, and this one is simple and to the point: the rich get richer. This is about inequality but not just inequality - the growth in inequality over time. Each country has four dots, divided into two pairs. From the legend, we learn that the...

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A long view of hurricanes

This chart by Axios is well made. The full version is here. It's easy to identify all the Cat 5 hurricanes. Only important ones are labeled. The other labels are hidden behind the hover. The chart provides a good answer to the question: what time of the year does the worst hurricanes strike. It's harder to compare the maximum speeds of the hurricanes. I wish there is a way to...

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