Statistics job opening . . . at the NBA!

March 7, 2015
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Jason Rosenfeld writes: I work for the NBA League Office headquarters in New York City. I’m the Director of Basketball Analytics here at the NBA, and I’m again recruiting analysts. More information on the roles I’m trying to fill can be found here: http://careers.peopleclick.com/careerscp/client_nba/external/jobDetails.do?functionName=getJobDetail&jobPostId=4954&localeCode=en-us I’m open to both undergraduate and graduate students. I’d be perfect […] The post Statistics job opening . . . at the NBA! appeared first on…

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Some data science principles from Gelman, Rosling and me

March 6, 2015
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Some data science principles from Gelman, Rosling and me

I discovered Hans Rosling's Gapminder work when I first started Junk Charts almost ten year ago, with this series of posts. So I was very excited to meet Hans yesterday at the Data, Children and Post-2015 Agenda Event hosted by the UNICEF Data and Analytics Section. And he gave a marvellous talk. I came away touched in equal parts by…

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John Waters (1) vs. Bono; Garland advances

March 6, 2015
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John Waters (1) vs. Bono; Garland advances

For yesterday‘s contest, Jonathan warns us what might happen if we invite Dorothy: Only downside: Liza might show up. And the best argument for the Rev come from Bruce: It would be interesting to hear The Rev Al explain . . . during any of his many meetings with the President, has Obama ever hit […] The post John Waters…

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“The Saturated Fat Studies: Set Up to Fail”

March 6, 2015
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Russ Lyons points me to this recent magazine article by Martijn Katan and a research article, “Diet and Serum Cholesterol: Do zero correlations negate the relationship?” by David Jacobs, Joseph Anderson, and Henry Blackburn, and this video by Michael Greger. This is interesting stuff, especially as the ultimate truth is still very unknown. It’s good […] The post “The Saturated…

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Probability Theory: Convergence in Distribution Problem

March 6, 2015
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Let's solve some theoretical problem in probability, specifically on convergence. The problem below is originally from Exercise 5.42 of Casella and Berger (2001). And I just want to share my solution on this. If there is an incorrect argument below, I ...

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Create a custom PDF and CDF in SAS

March 6, 2015
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Create a custom PDF and CDF in SAS

In my previous post, I showed how to approximate a cumulative density function (CDF) by evaluating only the probability density function. The technique uses the trapezoidal rule of integration to approximate the CDF from the PDF. For common probability distributions, you can use the CDF function in Base SAS to […]

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Banned!

March 6, 2015
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Banned!

This is not really news any more, but I still think it's an interesting story. Last week the journal Basic and Applied Social Psychology has published an editorial setting out their views (or rather prescriptions) for how statistica...

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A puzzle about the latest test ban (or ‘don’t ask don’t tell’)

March 6, 2015
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A puzzle about the latest test ban (or ‘don’t ask don’t tell’)

A large number of people have sent me articles on the “test ban” of statistical hypotheses tests and confidence intervals at a journal called Basic and Applied Social Psychology (BASP)[i]. Enough. One person suggested that since it came so close to my recent satirical Task force post, that I either had advance knowledge or some kind […]

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Brand and Product Category Representation: Precursors to Preference Construction

March 5, 2015
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Brand and Product Category Representation: Precursors to Preference Construction

Evidently, preference is contextual, or so The Hershey's Company claims in their advertising. I agree and will not repeat the argument made in a previous post on incorporating preference construction into the choice modeling process.Within the framewor...

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Granger Causality & Seasonal Adjustment

March 5, 2015
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Granger Causality & Seasonal Adjustment

One decision that we often have to make when modelling with time-series data is whether to use "seasonally adjusted" data, or the original (unadjusted) data. In some cases the decision is effectively made for us - only the seasonally adjusted data are ...

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Judy Garland (4) vs. Al Sharpton; Derrida advances

March 5, 2015
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Judy Garland (4) vs. Al Sharpton; Derrida advances

WB calls yesterday‘s contest in the comments: Among French intellectuals, I’d rather hear from a corpse than an active public figure. My vote goes to Derrida. And, today, the woman who defined Hollywood stardom, up against a religious leader who dabbles in slander. How fabulous is that?? P.S. As always, here’s the background, and here […] The post Judy Garland…

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New interview

March 5, 2015
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New interview

I answered some questions from KDnuggets. Here is Part 1 of the interview. They picked this image.

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Light entertainment on snow day: making light of the meal

March 5, 2015
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Light entertainment on snow day: making light of the meal

Via reader Nick U. Washington Post featured this here. They apparently understood this graphic: You could create the same diagram for all the ingredients with overlapping flavor compounds, as in this diagram. There are six that have overlap. (Again, ignore...

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Defaults, once set, are hard to change.

March 5, 2015
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So. Farewell then Rainbow color scheme. You reigned in Matlab Far too long. But now that You are no longer The default, Will we miss you? We can only Visualize. E. T. Thribb (17 1/2) Here’s the background.  Brad Stiritz writes: I know you’re a creator and big proponent of open-source tools. Given your strong interest […] The post Defaults, once…

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Cannabis on trial

March 5, 2015
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The other night, Channel 4 has broadcast this programme. That's some sort of spin-off from the trial we're working on at UCL (Valerie Curran is the principal investigator $-$ the whole group is really good and all nice people to work with!). The idea o...

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My talk tomorrow (Thurs) at MIT political science: Recent challenges and developments in Bayesian modeling and computation (from a political and social science perspective)

March 4, 2015
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It’s 1pm in room E53-482. I’ll talk about the usual stuff (and some of this too, I guess). The post My talk tomorrow (Thurs) at MIT political science: Recent challenges and developments in Bayesian modeling and computation (from a politica...

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Bernard-Henry Levy (3) vs. Jacques Derrida; Carlin advances

March 4, 2015
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Bernard-Henry Levy (3) vs. Jacques Derrida; Carlin advances

There wasn’t much enthusiasm yesterday, but I do have to pick a winner, so I’ll go with Zbicylist’s comment: “Carlin. Are there 7 words you can’t say in a seminar? Let’s find out.” And today we have two more modern French intellectuals! I don’t have much of anything to say about either of these guys […] The post Bernard-Henry Levy…

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Cluster analysis in the classroom

March 4, 2015
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Cluster analysis in the classroom

I am a guest at the New School's Journalism + Design program this semester. The students conducted interviews about the question of what makes someone famous. Their interviewees were asked to name five famous people. We had images of these people up on the wall. Then, we put the pictures into clusters. We tried two different ways of doing it.…

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These are the statistics papers you just have to read

March 4, 2015
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Here. And here. Just kidding. Here’s the real story. Susanna Makela writes: A few of us want to start a journal club for the statistics PhD students. The idea is to read important papers that we might not otherwise read, maybe because they’re not directly related to our area of research/we don’t have time/etc. What […] The post These are…

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An easy way to approximate a cumulative distribution function

March 4, 2015
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An easy way to approximate a cumulative distribution function

Evaluating a cumulative distribution function (CDF) can be an expensive operation. Each time you evaluate the CDF for a continuous probability distribution, the software has to perform a numerical integration. (Recall that the CDF at a point x is the integral under the probability density function (PDF) where x is […]

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Nominations for best International Journal of Forecasting paper, 2012–2013

March 4, 2015
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Nominations for best International Journal of Forecasting paper, 2012–2013

Every two years, the International Journal of Forecasting awards a prize for the best paper published in a two year period. It is now time to identify the best paper published in the IJF during 2012 and 2013. There is always about 18 months delay after the publication period to allow time for reflection, citations, […]

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Tents, Tweets, and Events: Ongoing Protests and Social Media

March 3, 2015
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Our paper, entitled Tents, Tweets, and Events: The Interplay Between Ongoing Protests and Social Media, written with Marco Toledo Bastos (aka @toledobastos) and Dan Mercea (aka @DanMercea) just appeared in the Journal of Communication Recent protest movements have fuelled deliberations about the extent to which social media ignite protests. In this paper we compare time-series data of Twitter, Facebook, and onsite protest activity…

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George Carlin (2) vs. Barbara Kruger

March 3, 2015
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George Carlin (2) vs. Barbara Kruger

To decide yesterday‘s contest, I’ll have to point to Jeremy’s comment: Rembrandt in a walk: -He believes that “God is in every leaf on every tree”. Most of his greatest paintings are portraits of himself or regular people (as opposed to portraits of kings or Popes, or mythical battles, or etc.) Same for his etchings. […] The post George Carlin…

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