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Sprawling flood waters across the Midwest and South

The New York Times mapped the slow, wide-reaching flood waters this year so far: To measure the scope of the spring floods, The New York Times analyzed satellite data from the Joint Polar Satellite System using software, developed by government and academic researchers for flood detection, that is frequently used in disaster response. The data covers the period from Jan. 15 to June 30 and shows an interconnected catastrophe along...

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School diversity visualized with moving bubbles

The Washington Post visualized 13,000 school districts to show the change in diversity between 1995 and 2017. Each bubble represents a district and the size represents number of students. The bubbles transition to diverse, undiverse, and extremely undiverse. It’s an important topic and worth the read. But right now, all I can think about is that I need to up my moving bubble game. Tags: diversity, school, Washington Post

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Sleep Schedule and Age

From the teenage years to college to adulthood through retirement, sleep is all over the place at first but then converges towards consistency. Read More

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✚ That Time My Chart Was on the Reddit Front Page and Everyone Hated It (The Process #56)

Something I made was on the front page of Reddit. Cool. The problem: thousands of people downvoted it. Here's what I learned. Read More

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Tennis greats at the top of their game

The following chart of world No. 1 tennis players looks pretty but the payoff of spending time to understand it isn't high enough. The light colors against the tennis net backdrop don't work as intended. The annotation is well done, and it's always neat to tug a legend inside the text. The original is found at Tableau Public (link). The topic of the analysis appears to be the ages at...

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Stacking Apple apps in the App Store

For The New York Times, Jack Nicas and Keith Collins stack up app rankings in the App Store. Apple’s apps appear to find their way to the top of searches, perhaps more often than you might expect. I like how the graphics navigate through the stacked bars. It starts with a realistic view of scrolling through apps on an iPhone, and then zooms out on each section until you’re looking...

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Statistical uncertainty as certainty

Mark Rober, who is having a good run of science and engineering videos on YouTube, posted a short note on how he embraces statistical uncertainty: As humans we are really good at using hindsight bias to convince ourselves we are more in control of things than we really are. For example, if you give 1024 people a coin and give them 10 tries to get as many tails as possible,...

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NOAA chief scientist highlights the forecast contradiction

In regards to the press release that seemed to contradict the National Weather Service forecast, Craig N. McLean, chief scientist of NOAA: During the course of the storm, as I am sure you are aware, there were routine and exceptional expert forecasts, the best possible, issued by the NWS Forecasters. These are remarkable colleagues of ours, who receive our products, use them well, and provide the benefit of their own...

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A sim to show self-driving car challenges

On the surface, driving a car might seem fairly straightforward. Follow the rules of the road, don’t crash, and watch out for others. So why not just let a computer do all of the work? The Washington Post provides an interactive simulator to put you in the passenger seat and see for yourself. Tags: game, self-driving, simulation, Washington Post

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Announcement: Advancing your data skills, Fall 2019

Interrupting the flow of dataviz with the following announcement. If you're looking to shore up your data skills, modernize your skill set, or know someone looking for hands-on, high-touch instruction in Machine Learning, R, Cloud Computing, Data Quality, Digital Analytics,  A/B Testing and Financial Analysis, Principal Analytics Prep is offering evening classes this Fall. Click here to learn about our courses.  Our instructors are industry veterans with 10+ years of...

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