Open data & storytelling – 4 presentations from the Nordic Statistical Meeting 2013

August 31, 2013
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From:http://www.ssb.no/omssb/tjenester-og-verktoy/kurs-og-seminarer/nordisk-statistikermote-vedlegg/artikler-og-presentasjonerOpen Data - Experiences from a National statistical office's point of viewHeli MikkeläStatistics FinlandStatistical storytell...

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Stan Project: Continuous Relaxations for Discrete MRFs

August 30, 2013
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Hamiltonian Monte Carlo (HMC), as used by Stan, is only defined for continuous parameters. We’d love to be able to do discrete sampling. So I was excited when I saw this: Yichuan Zhang, Charles Sutton, Amos J Storkey, and Zoubin Ghahramani. 2012. Continuous Relaxations for Discrete Hamiltonian Monte Carlo. NIPS 25. Abstract: Continuous relaxations play […]The post Stan Project: Continuous Relaxations for Discrete MRFs appeared first on Statistical Modeling, Causal…

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Econometrica, Heteroskedasticity and the Greeks

August 30, 2013
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Over at Leisure of the Theory Class, Ricky Vohra asks why Econometrica is spelled with a "c" rather than a "k." As he notes:The journal Econometrica is spelt as I just wrote. The journal Biometrika, however,...

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AAAS S&T Fellows for Big Data and Analytics

August 30, 2013
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Thanks to Steve Pierson of the ASA for letting us know that the AAAS Science and Technology Fellowship program has a new category for "Big Data and Analytics". For those not familiar, AAAS organizes the S&T Fellowship program to get … Continue reading →

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Blogging

August 30, 2013
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A journalist asked me for my thoughts on academics and blogging, in light of the recently announced move of the sister blog to the Washington Post. I responded as follows: John Sides is the leader of the Monkey Cage and in particular was the key person involved in the Washington Post move. But I will […]The post Blogging appeared first on Statistical Modeling, Causal Inference, and Social Science.

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ECVP tutorial on classification images

August 30, 2013
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ECVP tutorial on classification images

The slides for my ECVP tutorial on classification images are available here. Try this alternative version if the equations look funny. (image from Mineault et al. 2009) The slides are in HTML and contain some interactive elements. They’re the result of experimenting with R Markdown, D3 and pandoc. You write the slides in R Markdown, […]

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Bayes Theorem and the Forward Arrow of Time.

August 29, 2013
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Shalizi wrote a paper purporting to show Statistical Mechanics couldn’t be an application of Bayesian Statistics because Bayesian updating implies Entropy is decreasing. Such confusion arises because empirical entropies computed from frequencies are ...

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The return of the stat – Computing for Data Analysis & Data Analysis back on Coursera!

August 29, 2013
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It's the return of the stat. Roger and I are going to be re-offering our Coursera courses: Computing for Data Analysis (starts Sept 23) Sign up here. Data Analysis (starts Oct 28) Sign up here.

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Edgar Allan Poe was a statistician

August 29, 2013
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Antony Unwin writes: Rereading Edgar Allan Poe’s “Murder in the Rue Morgue” reminded me of his astute remarks on analysis. For instance But it is in matters beyond the limits of mere rule that the skill of the analyst is evinced. He makes, in silence, a host of observations and inferences. and and the difference […]The post Edgar Allan Poe was a statistician appeared first on Statistical Modeling, Causal Inference,…

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Is being lonely unnatural for slim particles? A statistical argument

August 29, 2013
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Is being lonely unnatural for slim particles? A statistical argument

Being lonely is unnatural, at least if you are a slim Higgs particle (with mass on the order of the type recently discovered)–according to an intriguing statistical argument given by particle physicist Matt Strassler (sketched below). Strassler sets out “to explain the scientific argument as to why it is so unnatural to have a Higgs particle that is “lonely” — with no […]

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What is Numbersense about?

August 29, 2013
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Michael Elves interviews me for UMFM, the University of Manitoba radio station. We chatted at length about pretty much all the different chapters of Numbersense. He was very interested in the fantasy football materials since the draft is happening this week. You can hear the interview at 11:30 am CST on Thursday Aug 29. Michael tells me a recording will be made available later. *** JMP will be giving away…

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Fragmented Memory: Weaving a Computer Core Dump as a Tapestry

August 28, 2013
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Fragmented Memory: Weaving a Computer Core Dump as a Tapestry

Fragmented Memory [phillipstearns.wordpress.com], designed by electronic media artist Phillip Stearns, consists of 3 large pieces of woven tapestry of which the woven patterns have been completely driven by digital data. In fact, each piece of tapest...

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mem:o – iPad App Provides Infographic Interface for the Quantified Self

August 28, 2013
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mem:o – iPad App Provides Infographic Interface for the Quantified Self

The free iPad app mem:o [carolineandyoung.com], designed by interaction designers Caroline Oh and Young Sang Cho makes tracking, logging and analysing your quantified-self activities a compelling visual experience. Exploiting the beauty of bubbles, ...

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Evidence-based Data Analysis: Treading a New Path for Reproducible Research (Part 2)

August 28, 2013
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Evidence-based Data Analysis: Treading a New Path for Reproducible Research (Part 2)

Last week I posted about how I thought the notion of reproducible research did not go far enough to address the question of whether you could trust that a given data analysis was conducted appropriately. From some of the discussion … Continue reading →

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Why during the 1950-1960′s did Jerry Cornfield become a Bayesian?

August 28, 2013
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Joel Greenhouse writes: I saw your recent paper on Feller [see here and, for a more fanciful theory, here]. Looks like it was fun to write. I recently wrote a paper that asks an orthogonal question to yours. Why during the 1950-1960′s did Jerry Cornfield become a Bayesian? It appeared in Statistics in Medicine – […]The post Why during the 1950-1960′s did Jerry Cornfield become a Bayesian? appeared first on…

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These journal editors probably forgot to drink their morning coffee

August 28, 2013
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These journal editors probably forgot to drink their morning coffee

Here we go again. Another useless study published in a peer-reviewed journal (Mayo Clinic Proceedings) with a relatively high impact factor and promoted as "Breaking News from the Editor" to the press who then attached a sensational headline and reported it as "science". This is what caught my eye: "Drinking more than 28 cups of coffee a week may be harmful for people younger than 55, according to a study."…

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C/C++: Median

August 28, 2013
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C/C++: Median

Output:C Codes: C++ Codes:

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Highlight the right elements of a chart

August 28, 2013
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Highlight the right elements of a chart

The big news in the tech world is Steve Ballmer's retirement accouncement. Andrew Sullivan cites this chart by Derek Thompson as a reason for Ballmer's departure: (original article) How about this version? What makes this version better? Having the Microsoft/Wintel...

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Bayesian Estimation of Correlation – Now Robust!

August 28, 2013
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Bayesian Estimation of Correlation – Now Robust!

So in the last post I showed how to run the Bayesian counterpart of Pearson’s correlation test by estimating the parameters of a bivariate normal distribution. A problem with assuming normality is that the normal distribution isn’t robust against...

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Using finite differences to estimate the maximum of a time series

August 28, 2013
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Using finite differences to estimate the maximum of a time series

Finding the maximum value of a function is an important task in statistics. There are three approaches to finding a maxima: When the function is available as an analytic expression, you can use an optimization algorithm to find the maxima. For example, in the SAS/IML language, you can use any [...]

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The desertification of the NHS

August 28, 2013
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The desertification of the NHS

The peerless Daily Mail reports today with its usual sobriety that "thousands are dying of thirst on NHS". The actual story is that NICE are about to release a new guideline on acute kidney injury (in Prince's spirit: the condition forme...

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Python: Download and Install Spyder in Ubuntu

August 28, 2013
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Python: Download and Install Spyder in Ubuntu

Python offers modules such as scipy, numpy, and pandas for data analysis. And I am going to use these as alternative to R. To get started, I recommend installing the Python IDE, Spyder. If you haven't yet installed python in your computer, don't worry ...

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