Monthly Archives: April 2013

3D Model Using the rgl Package

April 25, 2013
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3D Model Using the rgl Package

A while back, I had a unique opportunity to work with some very talented interns for the summer while I was working at Allstate insurance. Without giving away details of the project that Allstate may prefer to keep secret, let's just say that we had ac...

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GSoC and R: Off to the Races

April 25, 2013
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GSoC and R: Off to the Races

Google Summer of Code has now opened for student applications, and the R Project has once again been selected as a mentoring organization.  I’ve discussed before that a variety of mentors have proposed a number of projects for students to work on during this summer, but I wanted to emphasize some points about the schedule. The deadline for

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Interacting, on demand, with 2012 best cities data and plotting different graphs —- Experiments with ggplot2 on shiny server

April 25, 2013
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Interacting, on demand, with 2012 best cities data and plotting different graphs —- Experiments with ggplot2 on shiny server

Data from slides on Bloomberg businessweek's site: http://images.businessweek.com/slideshows/2012-09-26/americas-50-best-citiesIn this post, I show how one can interact with a dataset and generate graphs on the fly (technically, I've predetermined...

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Lahman: A New R Package for Baseball Stats

April 25, 2013
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Lahman: A New R Package for Baseball Stats

by Joseph Rickert Baseball fans have been serious about statistics since Carl Pearson was a young man (although I doubt that Carl followed the game). It is not clear, though, exactly when baseball statisticians moved from doing descriptive stats into predictive analytics. In his book Super Crunchers, Ian Ayers credits Bill James of Baseball Abstract fame for getting this...

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A Call for Context-Aware Measurement

April 25, 2013
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A Call for Context-Aware Measurement

Context awareness seems to be everywhere, and everyone seems to be saying that context matters.  Gartner foresees "a game-changing opportunity" in what it calls context-aware computing.  The title of their report states it best, "Context Shap...

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A plea for less word clouds

April 25, 2013
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A plea for less word clouds

Word cloud of DOMA hearing transcriptsI must admit, there is something appealing about the word cloud - that is, until you try to understand what it actually means...Word clouds are pervasive - even in the science world. I was somewhat spurred to wri...

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interesting puzzle

April 25, 2013
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interesting puzzle

In addition to its weekly mathematics puzzles, Le Monde is now publishing a series of vulgarisation books on mathematics, under the patronage of Cédric Villani. Jean-Michel Marin brought me two from the series, one on the golden number and one on Pythagoras’ theorem. (This is actually a translation of a series published by El Pais

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BEER REVIEW: End of the World Midnight Wheat

April 24, 2013
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BEER REVIEW: End of the World Midnight Wheat

I promised in Episode 166 that I’d review this beer with a bit more detail than my usual quick spiel on the show, so allow me to present: End of the World Midnight Wheat! An ale brewed with “midnight wheat, chocolate malt, chili and spice” from Shock Top (aka Anheuser-Busch) First and foremost a special

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A brainfuck interpreter for R

April 24, 2013
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A brainfuck interpreter for R

The deadline for my book on R is fast approaching, so naturally I’m in full procrastination mode.  So much so that I’ve spent this evening creating a brainfuck interpreter for R.  brainfuck is a very simple programming language: you get an array of 30000 bytes, an index, and just 8 eight commands.  You move the

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Free e-Copy of Bayesian Computation with R (Use R)

April 24, 2013
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Free e-Copy of Bayesian Computation with R (Use R)

Amazon is currently making the first edition of Bayesian Computation with R (Use R) by Jim Albert available for free on Kindle. I own a copy of the book and there is a lot of good content and R examples on how one can do general Bayesian statistics.  The R scripts  from the book (2nd edition but

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