Work for My Friends! (Dept. of Signal Amplification)

September 7, 2012
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Attention conservation notice: You are almost certainly not looking for a post-doc in network modeling. My friends and co-authors are hiring post-docs to work on network data analysis. It's a great opportunity, and you should apply if you're good. ...

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Robins and Wasserman Respond to a Nobel Prize Winner

September 7, 2012
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Attention conservation notice: 2500 words of statisticians quarreling with econometricians about arcane points of statistical theory. Long, long ago, I tried to inveigle Larry into writing this, by promising I would make it a guest post. Larry now h...

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"Dependence Estimation in High-Dimensional Euclidean Spaces" (Next Week at the Statistics Seminar)

September 7, 2012
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For the first seminar of the new academic year, we are very pleased to welcome — Barnabas Pcozos, "Dependence Estimation in High-Dimensional Euclidean Spaces" Abstract: In this presentation we review some recent results on dependence estimati...

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Books to Read While the Algae Grow in Your Fur, August 2012

September 7, 2012
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Attention conservation notice: I have no taste. M. S. Bartlett, Stochastic Population Models in Ecology and Epidemiology Short (< 100 pp.) introduction to the topic as of 1960, and so inevitably mostly of historical interest. It was aimed at p...

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Flow Control, Looping, Vectorizing (Introduction to Statistical Computing)

September 7, 2012
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Lecture 3: Conditioning the calculation on the data: if; what is truth?; Boolean operators again; switch. Iteration to repeat similar calculations: for and iterating over a vector; while and conditional iteration (reducing for to while); repeat and u...

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Add Text Annotations to ggplot2 Faceted Plot (an easier approach)

September 7, 2012
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Add Text Annotations to ggplot2 Faceted Plot (an easier approach)

I recently posted a blog about adding text to a ggplot2 faceted plot (LINK). I was unhappy with the amount of time it takes to create the text data frame to then label the plot. And then yesterday when the … Continue reading →

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The future of Artificial Intelligence – as imagined in 1989

September 6, 2012
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The future of Artificial Intelligence – as imagined in 1989

This image comes from the cover of Preliminary Papers of the Second International Workshop on Artificial Intelligence and Statistics (1989). Someone abandoned it in the lobby of my building at school. Whatever for, I’ll never know. I just love the idea of machine learning/AI/Statistics evoking a robot hand drawing a best fit line through some

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Stephen Senn: The nuisance parameter nuisance

September 6, 2012
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Stephen Senn: The nuisance parameter nuisance

Stephen Senn Competence Centre for Methodology and Statistics CRP Santé Strassen, Luxembourg “The nuisance parameter nuisance”  A great deal of statistical debate concerns ‘univariate’ error, or disturbance, terms in models. I put ‘univariate’ in inverted commas because as soon as one writes a model of the form (say) Yi =Xiβ + Єi, i = 1 [...]

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Posterior predictive check can and should be Bayesian

September 6, 2012
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Posterior predictive check can and should be Bayesian

Perception apparently employs prior knowledge that illumination comes from above, and that the surface itself has constant color.Here's a new article, in press. I'm a bit reluctant about it because it got zero feedback and is unchanged from the in...

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In this episode of the Simply Statistics podcast Jeff and I…

September 6, 2012
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In this episode of the Simply Statistics podcast Jeff and I discuss the deterministic statistical machine and increasing the cost of data analysis. We decided to eschew the studio setup this time and attempt a more guerilla style of podcasting. Also, R...

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One reason New York isn’t as rich as it used to be: Redistribution of federal tax money to other states

September 6, 2012
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One reason New York isn’t as rich as it used to be:  Redistribution of federal tax money to other states

Uberbloggers Andrew Sullivan and Matthew Yglesias were kind enough to link to my five-year-old post with graphs from Red State Blue State on time trends of average income by state. Here are the graphs: Yglesias’s take-home point: There isn’t that much change over time in states’ economic well-being. All things considered the best predictor of [...]

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WWW Foundation. What are they doing?

September 6, 2012
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WWW Foundation. What are they doing?

London based WWW Foundation has a mission: ‘We seek to establish the open Web as a global public good and …Continue reading »

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Testing for equality of sets

September 6, 2012
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Testing for equality of sets

Ah! The joys of sets! It is easy to test whether two vectors are equal in SAS/IML software. It is only slightly more challenging to test whether two sets are equal. Recall that A and B are equal as sets if they contain the same elements. Order does not matter. [...]

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Suicide statistics and the Christchurch earthquake

September 6, 2012
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Suicide statistics and the Christchurch earthquake

Suicide is a tragic and complex problem. This week New Zealand’s Chief Coroner released its annual statistics on suicide, which come with several tables and figures. One of those figures refers to monthly suicides in the Christchurch region (where I … Continue reading →

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Graphically Comparing Confidence Intervals From Different Models

September 6, 2012
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In a recent paper on Federal Reserve inflation forecast errors (summary blog post, paper) I wanted a way to easily compare the coefficients for a set of covariates (a) estimated from different types of parametric models using (b) matched and non-matche...

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Near-instant high quality graphs in R

September 5, 2012
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Near-instant high quality graphs in R

One of the main attractions of R (for me) is the ability to produce high quality graphics that look just the way you want them to. The basic plot functions are generally excellent for exploratory work and for getting to know your data. Most packages have additional functions for appropriate exploratory work or for summarizing […]

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Near-instant high quality graphs in R

September 5, 2012
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Near-instant high quality graphs in R

One of the main attractions of R (for me) is the ability to produce high quality graphics that look just the way you want them to. The basic plot functions are generally excellent for exploratory work and for getting to know your data. Most packages have additional functions for appropriate exploratory work or for summarizing […]

Read more »

The Drake Equation as Infographics: Do Extraterrestrials Exist?

September 5, 2012
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The Drake Equation as Infographics: Do Extraterrestrials Exist?

This post includes 2 intriguing and beautiful infographics. The Drake Equation, devised in 1961 by astronomy professor Frank Drake, is a mathematical equation used to estimate the number of detectable extraterrestrial civilizations in the Milky Way g...

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Coexist from The XX: Mapping Viral Marketing as a Way of Viral Marketing

September 5, 2012
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Coexist from The XX: Mapping Viral Marketing as a Way of Viral Marketing

The following viral marketing website [thexx.info] allows visitors to listen to the outtakes of a new album from the English indie pop band The xx, titled "Coexist". In addition to the audio stream, the website also features a world map that tracks ...

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How long should the next podcast be?

September 5, 2012
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How long should the next podcast be?

Here’s the survival curve for audience retention from the Youtube version of our first podcast. So the question is: How long should our next podcast be? By the way, Rafa, Jeff, and I all appreciate the little bump over at the 15 minute mark. How...

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Two exciting movie ideas: “Second Chance U” and “The New Dirty Dozen”

September 5, 2012
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I have a great idea for a movie. Actually two movies based on two variants of a similar idea. It all started when I saw this story: Dr. Anil Potti, the controversial cancer researcher whose work at Duke University led to lawsuits from patients, is now a medical oncologist at the Cancer Center of North [...]

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Olympic graduation

September 5, 2012
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Olympic graduation

I've had a very intense day, yesterday. First, I went to the graduation ceremony. The main event was in Bedford Square Gardens (that's the best pic I could find, and it doesn't really make it justice...). The cool thing was that, while students, p...

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