Blog Archives

Bayesian Bootstrap: The Movie + Some Highlights from UseR! 2016

July 20, 2016
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Not surprisingly, this year’s UseR! conference was a great event with heaps of talented researchers and R-developers showing off the latest and greatest R packages. (A surprise visit from Donald Knuth didn’t hurt either.) What was extra great thi...

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How to Cut Your Planks with R

June 12, 2016
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How to Cut Your Planks with R

Today I’m extraordinarily pleased because today I solved an actuall real world problem using R. Sure, I’ve solved many esoteric statistical problems with R, but I’m not sure if any of those solutions have escaped the digital world and made some impact ex silico. It is now summer and in Sweden that means that many people tend to overhaul...

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bayesboot: An R package for doing the Bayesian bootstrap

February 19, 2016
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bayesboot: An R package for doing the Bayesian bootstrap

I recently wrapped up a version of my R function for easy Bayesian bootstrappin’ into the package bayesboot. This package implements a function, also named bayesboot, which performs the Bayesian bootstrap introduced by Rubin in 1981. The Bayesian bootstrap can be seen as a smoother version of the classical non-parametric bootstrap, but I prefer seeing the classical...

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bayes.js: A Small Library for Doing MCMC in the Browser

December 30, 2015
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Bayesian data analysis is cool, Markov chain Monte Carlo is the cool technique that makes Bayesian data analysis possible, and wouldn’t it be coolness if you could do all of this in the browser? That was what I thought, at least, and I’ve now made bayes.js: A small JavaScript library that implements an adaptive MCMC sampler and a...

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A Bayesian Model to Calculate Whether My Wife is Pregnant or Not

November 5, 2015
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A Bayesian Model to Calculate Whether My Wife is Pregnant or Not

On the 21st of February, 2015, my wife had not had her period for 33 days, and as we were trying to conceive, this was good news! An average period is around a month, and if you are a couple trying to go triple, then a missing period is a good sign something is going on. But at 33...

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The Map of Romantic Kissing with Leaflet and R

September 17, 2015
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The Map of Romantic Kissing with Leaflet and R

Romantic kissing is a cultural universal, right? Nope! At least not if you are to believe Jankowiak et al. (2015) who surveyed a large number of cultures and found that “sexual-romantic kissing” occurred in far from all of them. For some reasons the paper didn’t include a world map with these kissers and non-kissers plotted out. So, with the...

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Basic MCMC and Bayesian statistics in… BASIC!

August 9, 2015
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Basic MCMC and Bayesian statistics in… BASIC!

The BASIC programming language was at one point the most widely spread programming language. Many home computers in the 80s came with BASIC (like the Commodore 64 and the Apple II), and in the 90s both DOS and Windows 95 included a copy of the QBasic IDE. QBasic was also the first programming language I encountered (I used...

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Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman: The Movie

July 26, 2015
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This is a screencast of my UseR! 2015 presentation: Tiny Data, Approximate Bayesian Computation and the Socks of Karl Broman. Based on the original blog post it is a quick’n’dirty introduction to approximate Bayesian computation (and is also, in a sense, an introduction to Bayesian statistics in general). Here it is, if you have 15 minutes to...

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Easy Bayesian Bootstrap in R

July 14, 2015
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Easy Bayesian Bootstrap in R

A while back I wrote about how the classical non-parametric bootstrap can be seen as a special case of the Bayesian bootstrap. Well, one difference between the two methods is that, while it is straightforward to roll a classical bootstrap in R, there is no easy way to do a Bayesian bootstrap. This post, in an attempt to...

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Hygge at UseR! 2015, Aalborg

July 6, 2015
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Hygge at UseR! 2015, Aalborg

hygge A Danish word (pronounced HU-guh) meaning social coziness. I.e. the feeling of a good social atmosphere. – Urban Dictionary Yes, there was plenty of hygge to go around this year’s UseR! that took place last week in Aalborg, Denmark. Everybody I’ve spoken with agrees that it was an extraordinary conference, from the interesting speakers and presentations...

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