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  • Fitbit during sex

    August 13, 2015

    Topic

    Self-surveillance  /  Fitbit, humor

    Reddit user noveltysin wore a Fitbit during sex, and then posted a screenshot of her heart rate estimates.

    So yeah. There that is. See the reddit thread for a mature and academic discussion of the data, including a line-by-line adult parody of Eminem’s Lose Yourself.

    Doesn’t quite beat the marriage proposal heartbeat.

  • Statistical Atlas  /  government, United States

    The Statistical Atlas that Keeps On Going

    I already revived the first Statistical Atlas of the United States from 1870 with modern data, but there’s still more data to look at. So I kept on going.

    Read More
  • Guides  /  pitfalls, rules

    Real Chart Rules to Follow

    There are rules—usually for specific chart types meant to be read in a specific way—that you shouldn’t break. When they are, everyone loses. This is that small handful.

    Read More
  • The Price is Right winner and cancer survivor calculates the odds

    August 11, 2015

    Topic

    Statistics  /  cancer, game theory, probability, survival, The Price is Right

    Elisa Long, a professor in Decisions, Operations, and Technology Management at the University of California, Los Angeles, was diagnosed with breast cancer. The Price is Right films a breast cancer awareness episode every August. Long wanted to get on that show. So she watched episodes during her 6-hour chemotherapy sessions to familiarize herself with games and rules, and most importantly, to maximize her odds of winning.

    Long describes her thought process and probability calculations on her way to surviving cancer and winning it all on The Price is Right.

    My goal in going on “The Price Is Right” was to play the best I possibly could given tremendous uncertainty about the outcome. The same was true for my breast cancer. The stakes were just higher.

    Ah, the uncertainty of life.

  • Denver Broncos testing in-game analytics

    August 10, 2015

    Topic

    Statistics  /  football, sports

    Analytics continues its spread into the various facets of sports. Just recently, the Denver Broncos hired a director of analytics, Mitch Tanney, who will be available to coaches on the field to provide probabilities that inform in-game decisions.
    Read More

  • Disappearing Arctic reflected in National Geographic maps

    August 10, 2015

    Topic

    Maps  /  Arctic, global warming, National Geographic

    In the most recent update to their atlas coming in September, National Geographic explains the shrinking Arctic through the lens of previous atlas maps. It’s not looking good.
    Read More

  • Data cleaning tips

    August 7, 2015

    Topic

    Statistics  /  cleaning

    When you first learn statistics, visualization, or any data-related subject, the data usually is given to you in a ready-to-use format. This is so that you can spend most of your time on the topic of interest. But once you step outside the learning bubble, data rarely comes in the format you want.

    Marc Bellemare, an associate professor in the Department of Applied Economics at the University of Minnesota, provides some practical tips on how to deal with this. Bellemare’s parting advice:

    Really, there is no big secret to cleaning data other than “Document everything” and to save everything in different files and in different locations (i.e., your computer, Dropbox, Google Drive), and there is no other way to learn data cleaning than by doing it.

    Yep.

    Some of the tips are in the context of specific software environment, but you can easily apply them to more general situations.

  • Extract data from PDF files and export to CSV

    August 7, 2015

    Topic

    Software  /  csv, PDF

    Tabula, available for Windows and Mac, lets you extract data from PDF files, and it just got an update. The user interface got an overhaul and it’s now easier to grab data from multiple pages. I wrote about Tabula last year, but orgs continue to publish data in PDF files, and sometimes PDF is just all there is. So this is definitely a good thing.

    Keep it in your toolbox.

  • Why government sites are outdated and very much not fun to use

    August 6, 2015

    Topic

    Software  /  government, Reply All

    Government data sites are typically sluggish and a pain to use. So many forms. So slow. So much cruft in the way of what you really want. We went over this.

    Reply All, one of my favorite podcasts, talked to technologist Clay Johnson about why government sites are like this. It’s not so much the people as it is the system that gets in the way of making things better.
    Listen to the podcast

  • Possible float routes for Malaysia Airlines Flight 370

    August 6, 2015

    Topic

    Maps  /  flights, New York Times

    Malaysia Airlines Flight 370 went down a year ago, and with recently found debris that is possibly from the flight, researchers have a few more bits of data to work from. The New York Times picked up on coverage of what’s going on, and in the latest, they provide an animated map that shows possible routes the debris could have taken. This is based on computer models from the Commonwealth Scientific and Industrial Research Organisation, and suggests a search area.

  • Exploding nation of poverty

    August 5, 2015

    Topic

    Maps  /  poverty

    Poverty is on the rise. Justin Palmer mapped it for major cities in the United States.
    Read More

  • Criminal sentencing and a stat lesson on probabilities and uncertainty

    August 4, 2015

    Topic

    Statistics  /  crime, FiveThirtyEight, Marshall Project, simulation, uncertainty

    Pennsylvania is considering the use of risk assessment — the chances that someone will commit a crime in the future — in criminal sentencing. Risk assessment is already used in every state to some regard, so why not extend the concept? FiveThirtyEight and The Marshall Project look at the WTF-ness of this question.
    Read More

  • Tufte style charts in R

    August 4, 2015

    Topic

    Coding  /  custom, Edward Tufte, R

    Lukasz Piwek is chipping away at a collection of Tufte-style charts using R, along with the code snippets. Fittingly, the project is called Tufte in R. The Tufte stuff is nice and all, but that’s not why I like this project. Two reasons.
    Read More

  • How to Map and Use GeoTIFF Files in R

    It’s like working with a bunch of tiny dots, and oh look, all of sudden patterns emerge.

  • United States electricity map

    August 3, 2015

    Topic

    Maps  /  electricity, Washington Post

    The Washington Post mapped power plants in the United States by type and capacity in megawatts. Color indicates the former, and bubble size indicates the latter. There are a lot more natural gas power plants, supplying 30 percent of the nation’s energy, than I expected.

    See the article for a map for each type, along with a state-level breakdown.

  • Top high school plays and musicals, by decade

    July 31, 2015

    Topic

    Statistical Visualization  /  NPR, ranking, theatre

    Based on annual high school play and musical rankings from the magazine Dramatics, which date back to 1938, NPR charted the most popular plays by decade. For a variety of reasons — cast size, family-friendliness, and licensing — the oldies still reign.
    Read More

  • Technology sector, share of market over time

    July 31, 2015

    Topic

    Statistical Visualization  /  Economist, technology

    Here’s a straightforward stacked area chart from the Economist that shows shifting market share in the technology sector. It highlights the quick shrinkage of IBM in the 1990s, Microsoft reign soon after, and the apple surge mid-2000s. Be sure to look at the nominal and real views too, because even though relative dominance shifted, the sector as a whole is up and up.

  • Gender prediction through trivia performance

    July 30, 2015

    Topic

    Statistics  /  correlation, gender, prediction, trivia

    Todd Schneider likes trivia, and he plays in an online league called LearnedLeague. Curious, Schneider wondered if there was anything interesting he could glean from the performance of the LLamas (Learned League members) that might apply to knowledge in general.
    Read More

  • How stolen data affects you

    July 29, 2015

    Topic

    Statistics  /  New York Times, privacy, quiz

    You typically hear about data breaches in terms of number of records that were hacked. “A million email addresses were stolen” or “hackers ripped off 100,000 passwords.” Does anyone care? After the initial gasp-shock-horror, we move on and everyone forgets until the next time it happens.

    However, if a hack affects you in some way, you pay closer attention. That long random string password reminds you every time you log in somewhere.

    That’s the idea behind this quiz from the New York Times. Answer a few quick questions. See the potential information bits about you that were stolen in the past couple of years.

    It’s a good spin on the record tally, and leads you right in to privacy tips and more information about each hack.

    Give it a try.

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