August 2010

Apologies and Style Guides

August 13, 2010 | Ryan

I have to say that it’s pretty exciting to watch your blog go from a few hits over its lifetime to getting almost 200 in a single day.  I am currently negotiating with Google over the purchase of this blog.  Or maybe not.  Again, thanks be to @revodavid for posting ... [Read more...]

Rcpp svn revision 2000

August 13, 2010 | romain francois

I commited the 2000th revision of Rcpp svn today, so I wanted to look back at what I did previously with the 50 000th R commit. Here are the number of commits per day and month ... the same thing, but focused on the period since I joined the project ... and now ... [Read more...]

Scrape Web data using R

August 13, 2010 | --

Plenty of people have been scraping data from the web using R for a while now, but I just completed my first project and I wanted to share the code with you.  It was a little hard to work through some of the “issues”, but I had some great help ... [Read more...]

Tuning Notepad++

August 12, 2010 | Karsten W.

Here are some tricks I collected for making Notepad++ a more comfortable text editor for me in general in for the R programming language in particular.Switch between tabs in Notepad++ with Ctrl-PageUp/DownNotepad++'s default behaviour is to use Ctrl+(S... [Read more...]

useR! 2010 conference videos

August 12, 2010 | Szilard

Videos of the invited talks of the useR! 2010 conference as follows (courtesy by Kate Mullen and NIST). This site also aims at collecting the materials (video, slides, R code) of local R users group (RUG) meetings and various other … Continue reading →
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Baseball games: getting longer?

August 11, 2010 | David Smith

ESPN's Bill Simmons (aka The Sports Guy) recently suggested that the primary cause of dwindling interest in Red Sox games by fans is that baseball games these days are too long. "It's not that fun to spend 30-45 minutes driving to a game, paying for parking, parking, waiting in line ... [Read more...]

Converting R contingency tables to data frames

August 11, 2010 | toddjobe

A contingency table presents the joint density of one or more categorical variables. Each entry in a contingency table is a count of the number of times a particular set of factors levels occurs in the dataset. For example, consider a list of plant ... [Read more...]

Which chart is better?

August 10, 2010 | dan

CHART CRITICS, GRAPHICS CURMUDGEONS, COME ONE COME ALL Once upon a time there was this graph (graph 1). Andrew Gelman went all graphics curmudgeon on it, calling it an “ugly, sloppy bit of data graphics“, so it became this graph (graph 2). Now the question is, which is better: graph 2 or graph 3? ... [Read more...]

R Environments for Gibbs Sampler State

August 10, 2010 | Matt Shotwell

I recently decided to revisit some R code that implements a Gibbs sampler in an attempt to decrease the iteration time. My strategy was to implement the sampler state as an R environment rather than a list. The rationale was that passing an environment to and from functions would reduce ... [Read more...]

A Twitter feed for R links

August 10, 2010 | David Smith

India-based data scientist Harsh Singhal has compiled "State of the R": a list of more than 50 links to R-related websites, which has generated much discussion on the R Project group on LinkedIn. Now, even if you're not on LinkedIn, you can find the list at the new Links4R Twitter ... [Read more...]

RQuantLib 0.3.4

August 9, 2010 | Thinking inside the box

A fresh release of RQuantLib is now on CRAN and in Debian. RQuantLib combines (some of) the quantitative analytics of QuantLib with the R statistical computing environment and language. This follows the 0.3.3 release from last week and has again ... [Read more...]

An HSV colour wheel in R

August 9, 2010 | respiratoryclub

If you’ve read any of my previous posts, you’ll notice that they’re rather scanty on colour. There’s a reason for this. Mainly, that to get a good colour output takes some time. I recently read a commentary in Nature methods (sorry if you don’t have ... [Read more...]
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