Posts Tagged ‘ R ’

Shiny Developer Conference 2016 Recap

February 5, 2016
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Shiny Developer Conference 2016 Recap

This is a guest post from VP Nagraj, a data scientist embedded within UVA’s Health Sciences Library, who runs our Data Analysis Support Hub (DASH) service.Last weekend I was fortunate enough to be able to participate in the first ever Shiny Develope...

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Free video course: applied Bayesian A/B testing in R

February 4, 2016
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Free  video course: applied Bayesian A/B testing in R

As a “thank you” to our blog, mailing list, and Twitter followers (@WinVectorLLC) we at Win-Vector LLC have decided to re-release our formerly fee-based A/B testing video course as a free (advertisement supported) video course here on Youtube. The course emphasizes how to design A/B tests using prior “guestimates” of effect sizes (often you have … Continue reading Free video course: applied Bayesian A/B testing in R

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optimal simulation on a convex set

February 3, 2016
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optimal simulation on a convex set

This morning, we had a jam session at the maths department of Paris-Dauphine where a few researchers & colleagues of mine presented their field of research to the whole department. Very interesting despite or thanks to the variety of topics, with forays into the three-body problem(s) [and Poincaré‘s mistake], mean fields for Nash equilibrium (or […]

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First Bayesian Mixer Meeting in London

February 2, 2016
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First Bayesian Mixer Meeting in London

There is a nice pub between Bunhill Fields and the Royal Statistical Society in London: The Artillery Arms. Clearly, the perfect place to bring people together to talk about Bayesian Statistics. Well, that’s what Jon Sedar (@jonsedar, applied.ai) and...

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Le Monde puzzle [#947]

February 1, 2016
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Le Monde puzzle [#947]

Another boardgame in Le Monde mathematical puzzle : Given an 8×8 chequerboard,  consider placing 2×2 tiles over this chequerboard until (a) the entire surface is covered and (b) removing a single 2×2 tile exposes some of the original chequerboard. What is the maximal number of 2×2 tiles one can set according to this scheme? And for […]

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As First Lady, Popularity of Babies Named "Hillary" Dropped by an Unprecedented 90%

February 1, 2016
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As First Lady, Popularity of Babies Named "Hillary" Dropped by an Unprecedented 90%

In this article I examine the dramatic drop in the popularity of naming babies "Hillary" beginning at the start of President Bill Clinton's term. In order to understand the context of that drop, I look at the popularity of the first names of other Firs...

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Hillary Clinton’s Biggest 2016 Rival: Herself

January 31, 2016
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Hillary Clinton’s Biggest 2016 Rival: Herself

In a recent post I noted that despite Bernie Sanders doing better in many important indicators, Obama 2008 received 3x more media coverage than Sanders 2016.Reasonably, a reader of my blog noted that not all coverage was equal, that a presidential hope...

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2016 Prior Exposure Bayesian Data Analysis workshops for social scientists

January 29, 2016
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2016 Prior Exposure Bayesian Data Analysis workshops for social scientists

Mark Andrews and I launched our Prior Exposure Bayesian Data Analysis workshop series last year and are pleased to announce that bookings for year the 2016 workshops 1 and 2 are now open. This is part of the ESRC Advanced Training Initia...

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Obama 2008 received 3x more media coverage than Sanders 2016

January 28, 2016
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Obama 2008 received 3x more media coverage than Sanders 2016

Many supporters of presidential hopeful Bernie Sanders have claimed that there is a media blackout in which Bernie Sanders has been for whatever reason blocked from communicating his campaign message. Combined with a dramatically cut democratic debate ...

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love-hate Metropolis algorithm

January 27, 2016
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love-hate Metropolis algorithm

Hyungsuk Tak, Xiao-Li Meng and David van Dyk just arXived a paper on a multiple choice proposal in Metropolis-Hastings algorithms towards dealing with multimodal targets. Called “A repulsive-attractive Metropolis algorithm for multimodality” [although I wonder why XXL did not jump at the opportunity to use the “love-hate” denomination!]. The proposal distribution includes a [forced] downward […]

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