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Many things get stuck in people’s bodies. This is the percentage breakdown for the most common objects that end up in the emergency room.
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The oceans are deep. But how deep and what’s down there? Neal Agarwal provides this piece, The Deep Sea, that scales the depths of the ocean to your browser window. Scroll, scroll, and then scroll some more to see what sea life (and other things) reside at various depths.
Agarwal’s Size of Space piece from last month explores the size of space in a similar vein. It’s equally fun.
This is the internet I signed up for.
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High air pollution can lead to serious health risks, but you can’t usually see particulate matter floating in the air around you. So we have no base for comparison and only an abstract sense of what’s bad and okay. The New York Times tries to make the pollution more visible.
They lead with moving particles across your screen at a density that matches approximately to what the Environmental Protection Agency defines as “good” air quality. Then the number of particles increases to peak air pollution in your area this year. Then the density increases again for the really bad areas around the world.
So you get a baseline, a relatable point with geography, and then a point of perspective.
Be sure to check out the piece on your phone (only on updated iPhones?) to get the augmented reality view. Whoa.
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Inpredictable, a sports analytics site by Michael Beuoy, tracks win probabilities of NBA games going back to the 1996-97 season. When a team is up by a lot, their probability of winning is high, and then flip that for the losing team. So for each game, you have a minute-by-minute time series of win probability.
Beuoy added a new feature that looks for games with similar patterns a.k.a. “Dopplegamers”.
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Hatching is an older technique to show varying degrees of shading. More lines and the area appears darker. Fewer lines and the area appears lighter. In the context of visualization, hatching tends to be used less, as filling polygons with solid and/or transparent colors is now trivial to do.
But I’ve been coming back to the method lately. In some cases, it’s been useful and others I think it just looks nice and provides a break from our standard, visually efficient charts.
Most recently, I used hatching to show population density and commute times.
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We came together with The Business of Fashion to view their collection of 140,000 photos of runway looks from almost 4,000 fashion shows around the world. If you could attend one fashion show per day, it would take you more than 10 years to see them all. This experiment makes this library easy and fun to explore in one single visualization. By extracting the main colors of each look, we used machine learning to organize the images by color palette, resulting in an interactive experiment of four years of fashion by almost 1,000 designers.
The interactive lets you see all of the color palettes and click through to see photos that match the palette.
You can also upload an image to fetch fashions that match the color usage in the image. So in case you want to match your wardrobe to say, your dog’s fur, that’s totally doable now. Nice.
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Robert Bosch likes to use the Traveling Salesman Problem to draw famous portraits with a single continuous line. Nice.
If you want to fall down a Traveling Salesman rabbit hole, be sure to check out the main pages of the site above. You’ll find code, datasets, challenges, and other re-generated art pieces.
Also, if you’re interested in doing something similar in R, Antonio Sánchez Chinchón kicked the tires a while back. [via kottke]
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Joshua Rosenberg describes his one-day experience teaching R to 7th graders:
[T]he activity worked albeit, as a very gradual introduction to using R. In combination with starting with modest goals, having the right tools (R Studio Cloud, R Markdown, and a suitable data set), I think, helped to make this work. 7th-graders can (start to) use R. The goal that Alex and I have is for students to be able to analyze data that they collect (and already-collected scientific data).
Lucky kids. All I got was a scientific calculator.
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From the Voyageurs Wolf Project, a map shows the travels of a lone wolf over an 11-month period. Check out the animated version for full effect.
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For Quartz, Dan Kopf and Jenny Anderson on how time spent with kids changes with age:
In the very beginning, it’s all about physical care, otherwise known as the stuff that makes your arms tired. A fifth of time parents spend with kids before their first birthday is on what could be described as keep-them-alive tasks. At age 1, this falls dramatically and it becomes playtime: peek-a-boo, stack the box, dinging and singing, making art, dancing, hide and seek, jumping in puddles. The share of time spent playing with children peaks around age 1, and then is then slowly replaced by a variety of other activities, including socializing and watching TV. Overall, time spent with children declines as kids get older.
Sounds about right. Although it makes me a bit nervous for the future.
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Reddit user harpalss animated hours of day light by latitude and day of year. Just let it hypnotize you. They used this formula to calculate daylight hours.
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Geotab made a rough estimate of the quietest route in each state, based on average traffic. The methodology:
To find the quietest road in each US state, we gathered the latest available (2015) traffic count data from the Highway Performance Monitoring System. Quietness was calculated as the annual average daily traffic (AADT, measured in # of vehicles), and routes with the lowest AADT in each state were deemed the quietest. Lengths of routes were gathered from local transport authorities in each state. The data covers Interstates, US Routes, and State Routes over 10 miles long.
I feel like they should’ve normalized by length of route, especially since they had it already. But hey, I’m always down for some peace and quiet.
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Summarizing a talk by Xaquín G.V., Natalie Gerhardstein for Delano:
Among González’ takeaways were that, in order to avoid misunderstandings or bias in data visualisation, it helps to be aware of the pitfalls across the lifecycle–from collection through analysis, to the visualisation itself–and, of course, the final story the data is helping to tell. Question, for example, whether correlations being made are legitimate, be transparent and be aware of the visuals aligning with words in the story, he argues.
There are always compromises and possible mistakes upstream before the data comes out as a nicely formatted delimited text file. The more you understand about what happens upstream, the more you can do downstream.
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From Tom Fishburne, the Marketoonist. Maybe a dashboard isn’t the answer you’re looking for.
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The bump chart is a line chart variant that focuses specifically on ranks over time instead of absolute values.
The advantage of the bump chart is that it’s unaffected by large differences in magnitudes, whereas a standard line chart might find itself with a bunch of lines clustered at the bottom because of a high-value category. The bump chart instead spaces ranks evenly.
With this in mind, the process of making a bump chart is similar to making a line chart in ggplot. The difference is that you need to calculate ranks first (if they’re not available already), and because you’re looking at ranks, it is a good idea to adjust the vertical scale accordingly.
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Similar to a standard bar chart, you can use dot plots to compare categories. However, dot plots offer some advantages with certain data sets. If you are using more than one series, it’s easier to spot the differences between them, because dots use less visual space than bars. Also, it’s often (strongly) suggested that, when using bar charts, we should start the scale at zero, because they can be misleading if the scale starts at a different point. With dot plots it’s easier to compare relative positions, so you don’t have to start the scale at zero.
In this tutorial, you will learn how to make a dot plot with two series in Excel. It is not available as a default Excel chart but, with a few tweaks, you can easily turn one of the available charts into a dot plot.
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Salaries vary across occupations. Here are some charts that show by how much for 800 of them.
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Using estimates from the Database of Road Transportation Emissions, Nadja Popovich and Denise Lu for The New York Times mapped auto emissions at high granularity. Popovich described their process on Storybench:
I want to make graphics that really resonate with people. If that is your goal as a visual journalist, something to think through is just how you can tie data back to a more human experience. To kind of go past the dataset as a dataset and reveal the humanity of it. I think one way that you can do that is by zooming into it in this way. You suddenly don’t just see, “Oh, this line of emissions has gone up.” We set out for a more personal view that says, “You know, you can actually see the roads that you might be driving on every day. That’s where the emissions are coming from.” It ties it back to a much more human experience and makes the data less abstract. Thinking a lot more through how to tie (the data) back to human-lived experiences is something that is really important and really we found resonates with readership.