small multiples

7 posts
The visual should be easier to read than your data

A reader sent this tip in some time ago and I lost track of who he/she is. This graphic looks deceptively complex. What's complex is not the underlying analysis. The design is complex and so the decoding is complex. The question of the graphic is a central concern of anyone who's retired: how long will one's savings last? There are two related metrics to describe the durability of the stash,...

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Three pies and a bar: serving visual goodness

If you are not sick of the Washington Post article about friends (not) letting friends join the other party, allow me to write yet another post on, gasp, that pie chart. And sorry to have kept reader Daniel L. waiting, as he pointed out, when submitting this chart to me, that he had tremendous difficulty understanding it:   This is not one pie but six pies on a platter. There...

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Let’s not mix these polarized voters as the medians run away from one another

Long-time follower Daniel L. sent in a gem, by the Washington Post. This is a multi-part story about the polarization of American voters, nicely laid out, with superior analyses and some interesting graphics. Click here to see the entire article. Today's post focuses on the first graphic. This one: The key messages are written out on the 2017 charts: namely, 95% of Republicans are more conservative than the median Democrat,...

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Let’s not mix these polarized voters as the medians run away from one another

Long-time follower Daniel L. sent in a gem, by the Washington Post. This is a multi-part story about the polarization of American voters, nicely laid out, with superior analyses and some interesting graphics. Click here to see the entire article. Today's post focuses on the first graphic. This one: The key messages are written out on the 2017 charts: namely, 95% of Republicans are more conservative than the median Democrat,...

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Getting into the heads of the chart designer

When I look at this chart (from Business Insider), I try to understand the decisions made by its designer - which things are important to her/him, and which things are less important. The chart shows average salaries in the top 2 percent of income earners. The data are split by gender and by state. First, I notice that the designer chooses to use the map form. This decision suggests that...

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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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Visualizing electoral college politics: exercise in displaying relationships between variables

Reader Berry B. sent in a tip quite some months ago that I just pulled out of my inbox. He really liked the Washington Post's visualization of the electoral college in the Presidential election. (link) One of the strengths of this project is the analysis that went on behind the visualization. The authors point out that there are three variables at play: the population of each state, the votes casted...

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The less-is-more story, and its meta

The Schwab magazine has an interesting discussion of a marketing research study purportedly showing "less is more" when it comes to consumer choice. They summarized the experimental setup and results in the following succinct graphic: The data consist of nested proportions. For example, among those seeing display 1, 60% stopped to look at the jams, and among those who stopped, 3% purchased. The nesting is presented as overlap in this...

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Some like it packed, some like it piled, and some like it wrapped

In addition to Xan's "packed bars" (which I discussed here), there are some related efforts to improve upon the treemap. To recap, treemap is a design to show parts against the whole, and it works by packing rectangles into the bounding box. Frequently, this leads to odd-shaped rectangles, e.g. really thin and really tall ones, and it asks readers to estimate relative areas of differently-scaled boxes. We often make mistakes...

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Canadian winters in cold gray

I was looking at some Canadian data graphics while planning my talk in Vancouver this Thursday (you can register for the free talk here). I love the concept behind the following chart: Based on the forecasted temperature for 2015 (specifically the temperature on Christmas Eve), the reporter for National Post asked whether the winter of 2015 would be colder or warmer than the winters on record since 1990. The accompanying...

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