Planet Money goes back to a 1984 article by Steven Levy that discusses this new thing called a spreadsheet. It was taking the place of the paper version that accountants manually edited, added to, and taped together.
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Spreadsheets for life

Texas hold ’em win probabilities
Software engineer Chris Beaumont visualized the strength of opponent hands in Texas hold 'em, given any other hand. This is based on counting about 1.3 trillion possible combinations.
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Gambler’s perspective on sports team win probabilities
Michael Beuoy's win probability model plotted on FiveThirtyEight starts all NBA teams at a 50% chance of winning. Then the probability of winning a game increases and decreases from there. However, practically speaking, we know something about the teams before each game, and we don't give even chances to the worst and best team at the zerominute mark.
So Todd Schneider took a different approach to minutebyminute win probability — from a gambling perspective. Each line in the time series starts closer to the end probability as gamblers wager based on what they think the final outcome will be.
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Every NBA team’s chances of winning, by game minute
Michael Beuoy made a win probability model for NBA teams and games, based on playbyplay data from 2000 to 2012. The basic calculator lets you punch in the game state, such as time left and the score difference, and it spits out the probability of a win.
Or, for a teamcentric view, you can see the chart from Beuoy and Allison McCann for FiveThirtyEight, which plots the average probability using the same model. Steady rise means a steady pull towards a win, whereas spikes and steeper, positive slopes mean a tendency towards scoring spurts.

Identifying cheaters in test results, a simple method
Jonathan Dushoff had issues with students in his population biology class cheating on his exams. One year there was suspicious behavior, but Dushoff and the proctors weren't able to prove the students cheated as it happened. So he looked closely at the test results to find the guilty students.
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Bayes’ theorem explained with LEGO bricks
Bayes' theorem is covered in introduction to statistics and probability courses, but I think a lot of people starting out don't understand it conceptually. They see a formula that you plug numbers into. Here's an example using LEGO bricks that clarifies the confusion, hopefully.

White House appoints first US Chief Data Scientist
Did you hear the news? The White House officially appointed DJ Patil as the federal government's first ever Chief Data Scientist. Awesome.
Here's Patil, with an introduction by President Barack Obama, on what's in store and a recruitment note for the US Digital Services.
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A photo of everything touched, for 11 years
Artist Alberto Frigo took a picture of every object he used with his right hand for the past 11 years. Averaging 76 photos per day, the project — Images of the artifact used by the main hand — is lowtech, with just a small, handheld camera. No internet connection, tagging, or documentation. Just a stream of photos.
Frigo aims to do this until age 60, so he has only 25 more years to go. Yep.

Top 1% earners versus bottom 90%
Quoctrung Bui for Planet Money plotted average income for the top one percent of earners against the average income of the bottom 90%, from 1920 to 2012. Through the 1970s, the animation shows rising income for the bottom and relatively static for the top and then vice versa after that.
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Making an Interactive Map with Category Filters
Let readers focus on the regions they care about to make their own comparisons and conclusions.
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Impact of vaccines throughout history
Not that anyone who does not vaccinate their kids cares, but Tynan DeBold and Dov Friedman for the Wall Street Journal show the change in number of cases for various diseases after a vaccination is introduced.
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Loading Data and Basic Formatting in R
It might not be sexy, but you have to load your data and get it in the right format before you can visualize it. Here are the basics, which might be all you need.
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Automated Tinder and the Eigenface
Because using Tinder takes up oh so much time swiping, swiping, and swiping, Justin Long made a bot that swipes and starts conversations for him. Step 1: Use his existing preferences to create two Eigenfaces, commonly used in face recognition, that represent a yes and a no. Step 2: Automate everything else with the Tinder API.
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Seagull skytrails
Watch one bird fly around, and it's hard to make out its flight pattern. Time shift multiple copies of that bird, creating an echo effect, and it's easy. Parker Paul did this with seagulls flapping around at the beach and After Effects.
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Realtime dashboard for office plumbing
The Sid Lee agency in Paris has Arduinopowered sensors hooked up throughout their office, and they brought the data together in a single dashboard. The result is a fun look into the inner workings of the agency in realtime.
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Audio landscape
Audio Landscape is a novel music visualizer that constructs a landscape based on the MP3 that you give it. As you fly overhead, you can see the mountains constructed in the distance. (You probably want to open Chrome for this one. Safari kind of buckled for me.)

Not just one chart
There is no more reason to expect one graph to "tell all" than to expect one number to do the same.
—John Tukey, Exploratory Data Analysis, 1977.

Algorithmgenerated song, based on income data
In the first song of his music experiment DataDriven DJ, visual artist Brian Foo used median household income data to create a song that represents a ride on a New York subway.
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Visualization constraints
In a discussion of context and visualization, Jen Christiansen pulls out a good snippet from Jacob Bronowski's The Observer (1952) on design constraints.
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Trust engineers
The most recent episode of RadioLab is on social experimentation and social networks. More specifically, Facebook and their timeline tinkering.
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