May 2009

Ubuntu Developer Summit in Barcelona

May 31, 2009 | Thinking inside the box

Due to some things falling into place, I had an opportunity to attend the first two days of last week's Ubuntu Developer Summit in beautiful Barcelona. Somehow, I had never managed to attend a Debian conference either, so it was good to meet a few of the old Debian hands ... [Read more...]

Nice Interview

May 31, 2009 | Paolo

Here you can read a nice interview with David Smith, REvolution Computing’s Director of Community, statistician and bloggeR.
[Read more...]

Emacs: AucTeX + Rubber + Sweave

May 30, 2009 | Vinh Nguyen

I got rubber to work with auctex and sweave (Rnw) files with the help of this. Basically, combined with my other stuff, I tweaked my .emacs file to look like: ;;following is AucTeX with Sweave -- works ;;http://andreas.kiermeier.googlepages.com/essmaterials (setq TeX-file-extensions '("Snw" "Rnw" "nw" "tex" "... [Read more...]

JPM Chase Corporate Challenge 2009

May 30, 2009 | Thinking inside the box

The 28th annual JP Morgan Chase Corporate Challenge race took place a couple of days ago May 21. Participation was down from the record of 23,000 runners set last year at around 17,125. With splendid weather, it is always a nice way to start the Memorial day weekend. We fielded a small but ... [Read more...]

The R Journal, Issue 1 Volume 1

May 29, 2009 | Stephen

The R journal just published its inaugural peer-reviewed journal. Aligned with the open-source mantra, the journal is free and openly accessible. The journal features short articles on topics focused on R, including notes about new add-on packages, hints for R newcomers, application reports detailing examples of data analysis with R, ... [Read more...]

Accessing Soil Survey Data via Web-Services

May 28, 2009 | dylan

Soil Survey Data   Online Querying of NRCS Soil Survey Data Sometimes you are only interested in soils data for a single map unit, component, or horizon. In these cases downloading the entire survey from Soil Data Mart is not worth the effort. An online query mechanism would suffice. The NRCS ... [Read more...]

Making Sense of Large Piles of Soils Information: Soil Taxonomy

May 27, 2009 | dylan

Western Fresno Soil Hierarchy: partial view of the hierarchy within the US Soil Taxonomic system   Soil Data Field and lab characterization of soil profile data result in the accumulation of a massive, multivariate and three-dimensional data set. Classification is one approach to making sense of a large collection of this ... [Read more...]

Embeding fonts in figures produced by R

May 27, 2009 | Gregor Gorjanc

Some publishers insist that we embed (include) the fonts in each figure. Here is a set of links regarding this issue for figures produced by R:http://tolstoy.newcastle.edu.au/R/help/05/01/10779.htmlhttps://stat.ethz.ch/pipermail/r-help/2006-October/114... [Read more...]

R and data

May 26, 2009 | erehweb

My fellow bloggers John and Scott have posted recently about the free statistical programming language R.  How does it compare to an expensive language like SAS? If you’ve done any statistical analysis, then you’ll know that getting and cleaning the data is a major step in any project.  ... [Read more...]

Free one-day R course at Vanderbilt

May 26, 2009 | Stephen

The Vanderbilt Kennedy Center is offering a free (repeat, free) one-day introductory course to the R statistical computing language on June 23, taught by Theresa Scott from the department of Biostatistics. You can find contact/registration info at the link below.Vanderbilt Kennedy Center - An Introduction to the Fundamentals & Functionality ... [Read more...]

More Recursion in R

May 26, 2009 | R Tips

I found another gem in R today. Earlier I commented about how R could do recursion, something that I love. I write some pretty complicated recursion functions in my research, but I also have a bad habit of compulsively reorganizing things. Now I've c... [Read more...]

Simple Approach to Converting GRASS DB-backends

May 23, 2009 | dylan

  Premise: The current default database back-end used by the GRASS vector model is DBF (as of GRASS 6.5), however this is probably going to be changed (to SQLite) in GRASS 7. The DBF back-end works OK, however it tends to be very sensitive (i.e. breaks) when reserved words occur in column ... [Read more...]

Temporary Debian mail outage

May 23, 2009 | Thinking inside the box

It would appear that debian.org rejected mail for maybe up to twelve hours from late yesterday afternoon (Central timezone) to some time shortly after I got up this morning. Things appear to be back to normal, so a big Thanks to the mail admins. If you happened to have ... [Read more...]

Data.gov

May 21, 2009 | Allan Engelhardt

I am always on the lookout for useful data sources for training in statistics, so I am excited that Data.gov has opened for business. The purpose of Data.gov is to increase public access to high value, machine readable datasets generated by the US Government. [Read more...]

Bootstrapping and the boot package in R

May 21, 2009 | Jeromy Anglim

I was recently asked about options for bootstrapping. The following post sets out some applications of bootstrapping and strategies for implementing it in R.I've found bootstrapping useful in several settings:where the statistic I'm interested in is a ...
[Read more...]

Baby steps with RSRuby in Rails

May 20, 2009 | nsaunders

Plotting and charting libraries for Ruby (on Rails) abound. However, few are sophisticated enough for scientists and many are not actively maintained. Plotting in R, on the other hand, is about as sophisticated as it comes. Can we bridge Ruby and R? Yes we can, thanks to Alex Gutteridge’s ...
[Read more...]
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