Books to Read While the Algae Grow in Your Fur, November 2015

February 4, 2016
By

Attention conservation notice: I have no taste. John Scalzi, The End of All Things Mind candy science fiction, latest in the series begun with Old Man's War. At the surface level, it's a fun series of skiffy adventures, in which there are schemes, ...

optimal simulation on a convex set

February 3, 2016
By

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 […]

Simple Distributions for Mixtures?

February 3, 2016
By
$X$

The idea of GLMs is that given some covariates,  has a distribution in the exponential family (Gaussian, Poisson, Gamma, etc). But that does not mean that  has a similar distribution… so there is no reason to test for a Gamma model for  before running a Gamma regression, for instance. But are there cases where it might work? That the non-conditional distribution is the same (same family at least) than the conditional ones? For…

“Chatting with the Tea Party”

February 3, 2016
By

I got an email last month offering two free tickets to the preview of a new play, Chatting with the Tea Party, described as “a documentary-style play about a New York playwright’s year attending Tea Party meetings around the country and interviewing local leaders. Nothing the Tea Party people in the play say has been […] The post “Chatting with the Tea Party” appeared first on Statistical Modeling, Causal Inference,…

Philosophy-laden meta-statistics: Is “technical activism” free of statistical philosophy? (ii)

February 3, 2016
By

Ben Goldacre (of Bad Science), in a Nature article today (“Make Journals Report Clinical Trials Properly“), expresses puzzlement as to why bad statistical practices– “selective publication, inadequate descriptions of study methods that block efforts at replication, and data dredging through undisclosed use of multiple analytical strategies“–are continuing to occur even in the face of […]

Philosophy-laden meta-statistics: Is “technical activism” free of statistical philosophy? (ii)

February 3, 2016
By

Ben Goldacre (of Bad Science), in a Nature article today (“Make Journals Report Clinical Trials Properly“), expresses puzzlement as to why bad statistical practices– “selective publication, inadequate descriptions of study methods that block efforts at replication, and data dredging through undisclosed use of multiple analytical strategies“–are continuing to occur even in the face of […]

Open Data Portals: News

February 3, 2016
By

There are new or refurbished open data portals to be announced. opendata.swiss Switzerland just published opendata.swiss in a new look for a better presentation of data. See the press release. europeandataportal.eu The European Commission published some months ago the European Data Portal. europeandataportal.eu is much more than a collection of open data. It is an ecosystem … Continue reading Open Data Portals: News

Where the fat people at?

February 3, 2016
By

Pearly Dhingra points me to this article, “The Geographic Distribution of Obesity in the US and the Potential Regional Differences in Misreporting of Obesity,” by Anh Le, Suzanne Judd, David Allison, Reena Oza-Frank, Olivia Affuso, Monika Safford, Virginia Howard, and George Howard, who write: Data from BRFSS [the behavioral risk factor surveillance system] suggest that […] The post Where the fat people at? appeared first on Statistical Modeling, Causal Inference,…

Rolling statistics in SAS/IML

February 3, 2016
By

Last week I showed how to use PROC EXPAND to compute moving averages and other rolling statistics in SAS. Unfortunately, PROC EXPAND is part of SAS/ETS software and not every SAS site has a license for SAS/ETS. For simple moving averages, you can write a DATA step program, as discussed […] The post Rolling statistics in SAS/IML appeared first on The DO Loop.

Young folks

February 3, 2016
By

We (as in Significance, in partnership with the Young Statisticians Section of the Royal Statistical Society) have just launched the 2016 Young Statisticians Writing Competition. The competition is open to any young statistician, regardless o...

What does it mean to understand statistics?

February 3, 2016
By

It is possible to get a passing grade in a statistics paper by putting numbers into formulas and words into memorised phrases. In fact I suspect that this is a popular way for students to make their way through a … Continue reading →

Hey—go to Iceland and work on glaciers!

February 3, 2016
By

Egil Ferkingstad and Birgir Hrafnkelsson write: We have an exciting PhD position here at the University of Iceland on developing Bayesian hierarchical spatio-temporal models to the field of glaciology. Havard Rue at NTNU, Trondheim and Chris Wikle at the University of Missouri will also be part of the project. The Department of Mathematics at the […] The post Hey—go to Iceland and work on glaciers! appeared first on Statistical Modeling,…

February 2, 2016
By

Here's a suggested reading list for February:Casey, G. and M. Klemp, 2016. Instrumental variables in the long run. MPRA Paper No. 68696.Coglianese, J., L. W. Davis, L. Kilian, and J. H. Stock, 2016. Anticipation, tax avoidance, and the price elasticity...

Unemployment in Europe

February 2, 2016
By

A couple of years I have made plots of unemployment and its change over the years. At first this was a bigger and complex piece of code. As things have progressed, the code can now become pretty concise. There are just plenty of packages to do the heav...

Unemployment in Europe

February 2, 2016
By

A couple of years I have made plots of unemployment and its change over the years. At first this was a bigger and complex piece of code. As things have progressed, the code can now become pretty concise. There are just plenty of packages to do the heav...

Summer internship positions for undergraduate students with Aki

February 2, 2016
By

There are couple cool summer internship positions for undergraduate students (BSc level) in Probabilistic Machine Learning group at Aalto (Finland) with me (Aki) and Samuel Kaski. Possible research topics are related to Bayesian inference, machine learning, Stan, disease risk prediction, personalised medicine, computational biology, contextual information retrieval, information visualization, etc. Application deadline 18 February. See more […] The post Summer internship positions for undergraduate students with Aki appeared first on Statistical…

Stunning breakthrough: Using Stan to map cancer screening!

February 2, 2016
By

Paul Alper points me to this article, Breast Cancer Screening, Incidence, and Mortality Across US Counties, by Charles Harding, Francesco Pompei, Dmitriy Burmistrov, Gilbert Welch, Rediet Abebe, and Richard Wilson. Their substantive conclusion is there’s too much screening going on, but here I want to focus on their statistical methods: Spline methods were used to […] The post Stunning breakthrough: Using Stan to map cancer screening! appeared first on Statistical…

Stunning breakthrough: Using Stan to map cancer screening!

February 2, 2016
By

Paul Alper points me to this article, Breast Cancer Screening, Incidence, and Mortality Across US Counties, by Charles Harding, Francesco Pompei, Dmitriy Burmistrov, Gilbert Welch, Rediet Abebe, and Richard Wilson. Their substantive conclusion is there’s too much screening going on, but here I want to focus on their statistical methods: Spline methods were used to […] The post Stunning breakthrough: Using Stan to map cancer screening! appeared first on Statistical…

February 2, 2016
By

In the last post in the Know Your Data series, I discussed how Uber can use its vast database of your personal trips against your personal interests. (This does not preclude the possibility that they use the data for your benefit.) It turns out that something more ominous is at foot… a number of news outlets have just published investigative reports about a company known as Vigilant Solutions (EFF, The…

First Bayesian Mixer Meeting in London

February 2, 2016
By

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...

February 2, 2016
By

A bit late, but here are links to a few round-ups of graphical journalism work from last year. These are always worth a look, no matter what time of year. Bloomberg, 2015 in Graphics The New York Times, 2015: The Year in Visual Stories and Graphics ProPublica, The 2015 ProPublica Year in Visual Storytelling The Wall Street … Continue reading 2015 Year in Graphics Links

Le Monde puzzle [#947]

February 1, 2016
By

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 […]

A menagerie of messed up data analyses and how to avoid them

February 1, 2016
By

Update: I realize this may seem like I'm picking on people. I really don't mean to, I have for sure made all of these mistakes and many more. I can give many examples, but the one I always remember is the time Rafa saved me from "I got a big one here" when I made