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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Thoughts on Blogging

August 28, 2013
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I was recently asked some questions via email about blogging. Rather than respond via email, I’ve decided to do a Gelman and post my response here. The Biggest Challenge The first question was, What’s been your biggest blogging challenge (finding the time, picking good topics, the technology, etc.)? There is an obvious answer here and […]

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Visualizing the Forbes-CCAP University Rankings using ggplot2, rCharts, googleVis, and the shiny server

August 28, 2013
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Visualizing the Forbes-CCAP University Rankings using ggplot2, rCharts, googleVis, and the shiny server

UPDATE: THE BLOG/SITE HAS MOVED TO GITHUB. THE NEW LINK FOR THE BLOG/SITE IS patilv.github.io and THE LINK TO THIS POST IS: http://bit.ly/1mcryNv. PLEASE UPDATE ANY BOOKMARKS YOU MAY HAVE. President Obama is pushing for higher education reform and...

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Interview with Ani Eloyan and Betsy Ogburn

August 27, 2013
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Jeff and I interview Ani Eloyan and Betsy Ogburn, two new Assistant Professors in the Department of Biostatistics here. Jeff and I talk to Ani and Betsy about their research interests and finally answer the burning question: "What is the … Continue reading →

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The Intellectual oubliette of p-values and Confidence Intervals.

August 27, 2013
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Criticizing P-values and Confidence Intervals (CI’s) is nothing new, but my aim is different. My goal is to tear down, shred, burn and destroy them using arguments you probably haven’t seen before, aided by Entropy and it’s various ma...

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Bayesian model averaging or fitting a larger model

August 27, 2013
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Nick Firoozye writes: I had a question about BMA [Bayesian model averaging] and model combinations in general, and direct it to you since they are a basic form of hierarchical model, albeit in the simplest of forms. I wanted to ask what the underlying assumptions are that could lead to BMA improving on a larger […]The post Bayesian model averaging or fitting a larger model appeared first on Statistical Modeling,…

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C/C++: Mean

August 27, 2013
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C/C++: Mean

Output: C Codes: C++ Codes:

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Hate the defaults

August 27, 2013
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Hate the defaults

One piece of advice I give for those wanting to get into data visualization is to trash the defaults (see the last part of this interview with me). Jon Schwabish, an economist with the government, gives a detailed example of...

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Round up of book news

August 27, 2013
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Here are links to coverage of Numbersense. David Walker and I debate whether statisticians should be a part of Big Data in Significance. (link - requires registration). Significance is a joint publication of the Royal Statistical Society and the American Statistical Association, and a great source of applied statistics. Walker fears Big Data is pure froth while I outline several problems in which statisticians can play a key role. Princeton…

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Creating Marginal Effect Plots for Linear Regression Models in R

August 27, 2013
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Creating Marginal Effect Plots for Linear Regression Models in R

I discuss how to use R to create marginal effect plots as a part of evaluating interactive theories as suggested by Brambor, Clark, and Golder (2006).

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