July 2011

CRU Data in RghcnV3

July 31, 2011 | Steven Mosher

As many have noted CRU have posted their data a bit ago and the usual gang has started to put it through the various “engines” for calculating a global temperature index. Thanks to others who worked this problem ahead of me getting the data in Rghcnv3 was not that hard, ... [Read more...]

Welcome to rOpenSci

July 31, 2011 | Karthik Ram

rOpenSci is a collaborative effort to develop R-based tools for facilitating Open Science. So what is Open Science?  Open science is the practice of making various elements of scientific research — data & methods, code & software, and results & publications — readily accessible to anyone. While this has great potential for advancing research (in [...] [Read more...]

Taking August off!

July 31, 2011 | Ken Kleinman

We'll be back with recharged batteries and lots of new entries in September. Have a great summer*!As usual, please send any questions you have about using SAS or R.*Not valid in the southern hemisphere.
[Read more...]

Your Data is Never the Right Shape

July 31, 2011 | John Mount

One of the recurring frustrations in data analytics is that your data is never in the right shape. Worst case: you are not aware of this and every step you attempt is more expensive, less reliable and less informative than you would want. Best case: you notice this and have ... [Read more...]

hacking .gov shortened links

July 30, 2011 | Harlan

This past Friday, the web portal to the US Federal government, USA.gov, organized hackathons across the US for programmers and data scientists to work with and analyze the data from their link-shortening service. It turns out that if you shorten a web link with bit.ly, the shortened link ... [Read more...]

RStudio 0.94.92 visited

July 30, 2011 | Abhijit

I just updated my RStudio version to the latest, v.0.94.92 (will this asymptotically approach 1, or actually get to 1?). It was nice to see the number of improvements the development team has implemented, based I’m sure on community feedback. The team has, in my experience, been extraordinarily responsive to user ... [Read more...]

Forking Myself

July 29, 2011 | Steven Mosher

I’ve spent some time forking myself. Over the past few days when I could steal away an hour here  or there I decided to make a big change to the package. But it’s a good change. First some book-keeping. The Romantest.R file has a minor bug in ... [Read more...]

Splitting Vectors of Uneven Strings

July 29, 2011 | Tony Cookson

Suppose you have a vector of names such that the first three words in the vector contain relevant information, but there is a bunch of extraneous stuff. For example,Our goal is to collapse the first three words into one contiguous string (without the ...
[Read more...]

Text Editors in The Lord of the Rings

July 29, 2011 | kjhealy

Prompted by a passing thought about TextMate, I thought I’d make a comprehensive, accurate, unbiased, and irrefutable survey of text editors by way of comparison to locations in The Lord of the Rings. TextMate: Minas Tirith A quiet, long-overlooked land populated by simple folk who keep mostly to themselves. ... [Read more...]

NppToR 2.6.0 beta 2

July 29, 2011 | andrew

http://sourceforge.net/projects/npptor/files/npptor%20installer/NppToR-2.6.0.beta2.exe/download I’ve released beta 2 of NppToR 2.6.0.  Please take a look and report any problems.  This improves the installer and the uninstaller as well as a few bugs that popped up from the transition to UNICODE. [Read more...]

The Road to Default: Whaa???

July 29, 2011 | Steven Sabol

Okay so here is what has been happening:The yield curve has been going through a mad flattening- indicating that investors are "flying to safety" and that a recession may be looming around the corner. Why has it been flattening? Well, a string of bad n...
[Read more...]

multi-platform real-time ‘intro’ in R using rdyncall

July 29, 2011 | markheckmann

Guest post by Daniel Adler. Below is a real-time audio-visual multimedia demonstration – or in short ‘an intro’ – written in 100% pure R. It requires no compilation and runs across major platforms via the package rdyncall and preinstalled precompiled standard libraries such as OpenGL and SDL libraries. This ‘happy-birthday’ production runs about 3 ... [Read more...]

Financial Engineering with R

July 29, 2011 | David Smith

At the InformationManagement blog, Steve Miller talks about the applications of R to financial engineering, and reviews David Ruppert's book Statistics and Data Analysis for Financial Engineering. InformationManagement: Statistics and Financial Engineering [Read more...]

Infovis vs. statgraphics: A clear example of their different goals

July 29, 2011 | andrew

I recently came across a data visualization that perfectly demonstrates the difference between the “infovis” and “statgraphics” perspectives. Here’s the image (link from Tyler Cowen): That’s the infovis. The statgraphic version would simply be a dotplot, something like this: (I purposely used the default settings in R with ...
[Read more...]

Challenge alert — material identification

July 28, 2011 | mbq

We start yet another series of post — challenge alerts. This series is intended to share news about machine learning or data mining challenges which may be interesting to the members of our community, possibly with some brief introduction to the problem. So if you hear about some contest, notify us ... [Read more...]

Le Monde puzzle [#29]

July 28, 2011 | xi'an

This week, the puzzle from the weekend edition of Le Monde was easy to state: in the sequence (8+17n), is there a 6th power? a 7th? an 8th? If so, give the first occurrence. So I first wrote an R code for a function testing whether an integer is any ... [Read more...]
1 2 3 11

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)