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From Reddit user wequiock_falls, “What I’m about to learn about after my kid says, ‘Wanna know somefing?’ Data collected over the course of 7 days.”
Sounds about right.
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There’s a 6 percent figure from the CDC that could be easily misinterpreted. Here’s what it means.
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For NYT’s The Upshot, Tim Wallace and Krishna Karra looked at how the red-blue electoral map relates to the green and gray color spectrum in satellite imagery:
The pattern we observe here is consistent with the urban-rural divide we’re accustomed to seeing on traditional maps of election results. What spans the divide — the suburbs represented by transition colors — can be crucial to winning elections. It’s part of why President Trump, seeking to appeal to swing voters, has portrayed the suburbs as under siege and menaced by crime. But the suburbs are neither politically nor geographically monolithic. They are where Democratic and Republican voters meet and overlap, in a variety of ways.
The breakdown and process are impressive. Be sure to check out the full rundown. Wallace also provides more details about how this came together on the Twitter.
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The election is full of what-ifs, and the result changes depending on which direction they take. Josh Holder and Alexander Burns for The New York Times use a pair of circular Voronoi diagrams and draggable bubbles so that you can test the what-ifs.
Contrast this with NYT’s 2012 graphic showing all possible paths. While the 2012 graphic shows you the big picture, the 2020 interactive places more weight on individual outcomes.
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Each state is handling mail-in voting in a certain way with varying timelines and rules. FiveThirtyEight provides a straightforward state-by-state guide so you can see what your state is doing.
I like the color-coded grid map doubling as quick navigation. You get the overview and a jump to the state of interest.
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How to Untangle a Spaghetti Line Chart (with R Examples)
Put multiple time series lines on the same plot, and you quickly end up with a mess. Here are practical ways to clean it up.
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Jeff Leek and Roger Peng started their course Advanced Data Science at Johns Hopkins University. It’s meant for JHU students, but you can learn from the weekly course material for free:
The class is not designed to teach a set of statistical methods or packages – there are a ton of awesome classes, books, and tutorials about those things out there! Rather the goal is to help you to organize your thinking around how to combine the things you have learned about statistics, data manipulation, and visualization into complete data analyses that answer important questions about the world around you.
So you know the methods and tools (or how to learn them on your own), but you want to learn more about putting it all together.
Nice. I could probably use a refresher.
You can get the weekly updates here.
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The New York Times provides a state-by-state chart timeline for voting by mail:
But 16 states allow voters to apply for mail ballots so close to Election Day that their votes could be at risk of being too late if they are sent and returned through the Postal Service. Officials in these places recommend applying for and sending in ballots early, or dropping them off at local election offices or in secure drop boxes if available.
In Minnesota, voters can request a ballot the day before the election, too late to be mailed to them on time. But if voters request their ballots early and postmark them by Election Day, they should arrive in enough time to be counted. Montana has the same deadline for requesting a ballot but does not accept those returned after the election.
The takeaway is that you should vote early to make sure it counts. I’m just going to do it right when the ballot arrives.
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For NYT Opinion, Aaron E. Carroll on doing small things that sum to something bigger:
Too many view protective measures as all or nothing: Either we do everything, or we might as well do none. That’s wrong. Instead, we need to see that all our behavior adds up.
Each decision we make to reduce risk helps. Each time we wear a mask, we’re throwing some safety on the pile. Each time we socialize outside instead of inside, we’re throwing some safety on the pile. Each time we stay six feet away instead of sitting closer together, we’re throwing some safety on the pile. Each time we wash our hands, eat apart and don’t spend time in large gatherings of people, we’re adding to the pile.
A lot of what we do and the choices we make are based on past personal experience. It’s a challenge to look at a dataset that seems beyond us as an individual. So if you’re trying to galvanize a population with numbers, look for all of the ways you could help the individual relate.
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The New York Times provides a breakdown of minutes spoken at the Republican National Convention. The bubbles, sized by minute count, start as an overview of everyone who spoke, and then cluster into specific groups as you scroll.
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Bloomberg looks at how retail struggles might kill the middle-of-the-road malls before this pandemic is done:
Although many bankrupt retailers continue operating while restructuring under Chapter 11, they’re planning to shut down droves of lower-performing stores. Justice recently shuttered its location in Crystal Mall after its parent company, Ascena Retail Group Inc., filed for bankruptcy on July 23. The mall also houses a Men’s Wearhouse, whose parent, Tailored Brands Inc., filed for bankruptcy on Aug. 2. It wants to close up to 500 stores, accounting for a third of its locations. Vitamin retailer GNC, which filed for bankruptcy on June 23, wants to close at least 800 to 1,200 stores. They both operate in Crystal Mall.
I like these triangles to show scale. There’s also a variable width bar chart in the piece. It’s so back.
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“Two.js is deeply inspired by flat motion graphics. As a result, two.js aims to make the creation and animation of flat shapes easier and more concise.” It also renders in webgl, canvas2d, and svg, with not much change in your code. Two.js is definitely going on my list of things to try.
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Talking about a possible plasma treatment for Covid-19, the Food and Drug Administration Commissioner Stephen Hahn misinterpreted results from the study. The study from the Mayo Clinic notes a possible 35% reduction in mortality rate, and Hahn said that if 100 people were sick with Covid-19, 35 lives would be saved.
For The Washington Post, Aaron Blake discusses why the interpretation is incorrect:
The vast majority of people who get the virus will recover with or without plasma. The 35 percent figure comes into play among those who die — a much smaller group. That would still be a huge development if borne out. But strictly speaking, the treatment would have saved about 3 out of 100 coronavirus patients, not 35. And given the smaller numbers we’re talking about, the finding is much closer to the margin of error — even as the preliminary study finds the effect to be statistically significant.
And even then, the claim doesn’t make sense. The data that he and Trump were referring to compared those receiving plasma treatments not to a control group, but between higher and lower levels of plasma treatments. The group with lower levels died at a rate of 11.9 people out of 100 died, while 8.7 percent died with higher levels.
Hahn later corrected himself.
See also Christopher Ingraham’s quick explanation of relative versus absolute risk. And this visual explainer from 2015 by NYT’s The Upshot should also be helpful in understanding the difference.
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What is old? When it comes to subjects like health care and retirement, we often think of old in fixed terms. But as people live longer, it’s worth changing the definition.
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How do you assemble a banana and peanut butter sandwich that maximizes the number of bites with the perfect ratio of bread, peanut butter, and banana? Ethan Rosenthal, in a quest to work on something truly meaningless, solved the problem over several months with a truly roundabout solution:
So, how do we make optimal peanut butter and banana sandwiches? It’s really quite simple. You take a picture of your banana and bread, pass the image through a deep learning model to locate said items, do some nonlinear curve fitting to the banana, transform to polar coordinates and “slice” the banana along the fitted curve, turn those slices into elliptical polygons, and feed the polygons and bread “box” into a 2D nesting algorithm.
Best.
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For The Washington Post, Sergio Peçanha asks, “What will it take to achieve gender equality in American politics?”
It will take some more time and a lot more effort to reach equal representation. I asked my colleague David Byler, a statistics expert, to estimate how long it would take for women to reach equal numbers in Congress at the current pace. His estimate: about 60 years.
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Brad Plumer and Nadja Popovich for The New York Times show how policies that marked black neighborhoods as “hazardous” for real estate investment led to a present-day with fewer trees and higher temperatures. The maps that shift back and forth between past districting and how things are now show the picture clearly.
This goes hand-in-hand with how tree-cover and neighborhood incomes are also tightly coupled.