scale

14 posts
This exercise plan for your lock-down work-out is inspired by Venn

A twitter follower did not appeciate this chart from Nature showing the collection of flu-like symptoms that people reported they have to an UK tracking app.  It's a super-complicated Venn diagram. I have written about this type of chart before (see here); it appears to be somewhat popular in the medicine/biology field. A Venn diagram is not a data visualization because it doesn't plot the data. Notice that the different...

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Reviewing the charts in the Oxford Covid-19 study

On my sister (book) blog, I published a mega-post that examines the Oxford study that was cited two weeks ago as a counterpoint to the "doomsday" Imperial College model. These studies bring attention to the art of statistical modeling, and those six posts together are designed to give you a primer, and you don't need math to get a feel. One aspect that didn't make it to the mega-post is...

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The hidden bad assumption behind most dual-axis time-series charts

DC sent me the following chart over Twitter. It supposedly showcases one sector that has bucked the economic collapse, and has conversely been boosted by the stay-at-home orders around the world. At first glance, I was drawn to the yellow line and the axis title on the right side. I understood the line to depict the growth rate in traffic "vs a normal day". The trend is clear as day....

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Proportions and rates: we are no dupes

Reader Lucia G. sent me this chart, from Ars Technica's FAQ about the coronavirus: She notices something wrong with the axis. The designer took the advice not to make a dual axis, but didn't realize that the two metrics are not measured on the same scale even though both are expressed as percentages. The blue bars, labeled "cases", is a distribution of cases by age group. The sum of the...

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Scale of Bloomberg net worth

While we’re on the topic of Mike Bloomberg’s money, here’s another view from Mother Jones: I guess he’s rich. Tags: Bloomberg, Mother Jones, net worth, scale

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✚ Big Money You Can Relate To (The Process #76)

This week, a few projects went up on the internets about money and spending, each with different goals and approaches. In this issue of The Process, we look at each more closely. Read More

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Federal budget scaled to per person dollars

For The Upshot, Alicia Parlapiano and Quoctrung Bui scaled down the federal budget to something more relatable: To better understand how federal spending has changed since Mr. Trump has taken office, we looked at the actual budget amounts for the 2020 fiscal year. We divided them by the U.S. population and sized the numbers proportionally to make their scale easier to visualize. Then we compared the numbers to the actual...

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Billionaire’s spending scaled to your net worth

We hear about billionaires spending millions of dollars on ads, acquisitions, etc. It seems like a ridiculous amount of money, but that’s partially because us common folk think of the millions of dollars in the context of our own net worth. When Jeff Bezos spends a few multiples of what we will never make in a lifetime, it seems like a lot. For The Washington Post, Michelle Ye Hee Lee...

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How to read this chart about coronavirus risk

In my just-published Long Read article at DataJournalism.com, I touched upon the subject of "How to Read this Chart". Most data graphics do not come with directions of use because dataviz designers follow certain conventions. We do not need to tell you, for example, that time runs left to right on the horizontal axis (substitute right to left for those living in right-to-left countries). It's when we deviate from the...

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Scale of Australia bushfires shown with unit charts

Outside of Australia, it can be a challenge to get a grasp of how bad the bushfires actually are. There have been some attempts that overlay a map of Australia over various locations, but they’ve varied in accuracy. This scrolling unit chart by Reuters Graphics makes the comparison more concrete. Each square represents a square kilometer, a counter at the top ticks up as you scroll, and geographic points of...

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