April 2013

3D Model Using the rgl Package

April 25, 2013 | 0 Comments

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...
[Read more...]

GSoC and R: Off to the Races

April 25, 2013 | 0 Comments

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 ... [Read more...]

Lahman: A New R Package for Baseball Stats

April 25, 2013 | 0 Comments

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 ... [Read more...]

A Call for Context-Aware Measurement

April 25, 2013 | 0 Comments

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... [Read more...]

A plea for less word clouds

April 25, 2013 | 0 Comments

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... [Read more...]

interesting puzzle

April 25, 2013 | 0 Comments

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 ...
[Read more...]

BEER REVIEW: End of the World Midnight Wheat

April 24, 2013 | 0 Comments

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) ... [Read more...]

A brainfuck interpreter for R

April 24, 2013 | 0 Comments

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 ... [Read more...]

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

April 24, 2013 | 0 Comments

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 ... [Read more...]

Stamen maps with spplot

April 24, 2013 | 0 Comments

Several R packages provide an interface to query map services (Google Maps, Stamen Maps or OpenStreetMap) to obtain raster images …Continuar leyendo » [Read more...]

Announcing Revolution R Enterprise 6.2

April 24, 2013 | 0 Comments

We are pleased to announce that Revolution R Enterprise Release 6.2 is available to new subscribers today. This new software release from Revolution Analytics includes a number of key new features: Support for open source R 2.15.3, the latest stable release of R. Since Release 2.14.2, the R Project has added 89 new features, 11 ... [Read more...]

Bank of England Fan Charts in R

April 24, 2013 | 0 Comments

I managed to catch David Spiegelhalter’s Tails You Win on BBC iplayer last week. I missed it the first time round, only for my parents on my last visit home to tell me about a Statistician jumping out of a … Continue reading → [Read more...]

Disaggregating Annual Losses into Each Quarter

April 23, 2013 | 0 Comments

In loss forecasting, it is often necessary to disaggregate annual losses into each quarter. The most simple method to convert low frequency to high frequency time series is interpolation, such as the one implemented in EXPAND procedure of SAS/ETS. In the example below, there is a series of annual ... [Read more...]

Python Complements R’s Shortcomings

April 23, 2013 | 0 Comments

I’m a big fan of open-source software for research. For example, R-statistics, Qgis, and Grass GIS are awesome programs. R can do any statistical tests and numerical modeling you can imagine; if there’s not a built-in function you can write … Continue reading → [Read more...]

Slides from my R intro seminar

April 23, 2013 | 0 Comments

Here are my slides from a short introductory seminar on R (essentially going through part I of the R tutorial) last week. As magic lantern pictures go, they’re hideously ugly, but they were mostly there for future reference. Most of the seminar was spent showing RStudio. This Friday, we’... [Read more...]

The Foundation for Open Access Statistics

April 23, 2013 | 0 Comments

Earlier this month we blogged about Harvard Professors Gary King and Stuart Shieber providing advice to graduate students about open access, dissertations, and journal publishing. We also mentioned some of the great initiatives that facilitate open access publishing in the statistics community, like the Journal of Statistical Software (JSS), The ... [Read more...]
1 2 3 4 5 14

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)