August 2011

Analysis of Japanese Earthquakes Data

August 10, 2011 | isseing333

Latest version is here.Greater attention is much more about earthquakes, Touhoku earthquake has occurred on March 11, 2011. Earthquake data are released at Japan Weather Association's Tenki.jp. We can get these variables from the site.Date, TimeAreaLat... [Read more...]

Climate datasets in R

August 10, 2011 | Karthik Ram

As an ecologist working on climate change questions, I’ve always found it rather tedious to acquire and process climate data, especially when dealing with large spatiotemporal scales. Although many agencies provide free access to climate data, there is often some overhead (typically one to two days) before the data ... [Read more...]

Error : package does not have a name space

August 10, 2011 | joey711

Here is a frustrating knot I am beginning to unravel. R has a namespace structure to help reduce errors resulting from functions, methods, objects, classes having the same name from two different packages. Makes sense. Those R objects that are … Continue reading → [Read more...]

In case you missed it: July Roundup

August 10, 2011 | David Smith

In case you missed them, here are some articles from July of particular interest to R users. A simulation in R finds the value (or disadvantage) or drawing an X, J, Q or Z in Scrabble. How to display high-quality graphics on the web using SVG output from R. A ... [Read more...]

Bayes factors and martingales

August 10, 2011 | xi'an

A surprising paper came out in the last issue of Statistical Science, linking martingales and Bayes factors. In the historical part, the authors (Shafer, Shen, Vereshchagin and Vovk) recall that martingales were popularised by Martin-Löf, who is also influential in the theory of algorithmic randomness. A property of test ... [Read more...]

SNA: Visualising an email box with R

August 10, 2011 | expansed

Are statistics sexy? Visualising social networks certainly is! I wrote a little function, which makes producing beautiful plots depicting a mailbox with R an extremely easy task. I find visualisations of ‘social graphs’ particularly appealing. They look like flowers. I … Continue reading → [Read more...]

Dump MySQL to CSV using R

August 10, 2011 | gerhi

Based on a related post on one of my favorite python-lists I remembered, that I wrote a similar snipplet some time ago. So if you want to dump your whole MySQL database to csv-files you can recycle the following code: ?Download mysql2cvs.R1 2 3 4 5 6 7 8 9 require(RMySQL) m [Read more...]

Using the google prediction API from R

August 10, 2011 | Zach Mayer

Google has a "black box" prediction API that they provide for use with creating recommender systems or filtering spam. Furthermore, they provide an R package for interfacing that API, but try as I might I cannot get it to work under windows. Here are ...
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A 60-second survey for R users

August 10, 2011 | David Smith

I'm doing a little research to validate estimates of the size of the R user community. If you're an R user, please take a minute to complete this three-question survey on R usage at your organization. Thanks in advance. Revolution Analytics: R user base survey [Read more...]

Scraping web data in R

August 10, 2011 | Zach Mayer

In my last post, I went through a lot of effort to scrape the PMI index off the ISM website.  It turns out that was unnecessary effort, as commentator "senne" pointed out that this index is available from FRED, with the symbol NAPM. &nbs...
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Multiple cores in R, revisited

August 10, 2011 | JC

The bigmemory package in combination with doMC provides at least a partial solution for sharing a large data set across multiple cores in R. With this solution you can work on the same matrix using several threads. It is also a very scalable solution. ... [Read more...]

Coding, GUIs and Statistical Rituals

August 10, 2011 | EpiGrad

I was recently inspired to comment on this blog post, asking is R is a cure for ‘mindless statistics’. Anyone whose familiar with statistics used in applied fields like epidemiology, sociology, social sciences generally will be familiar with the idea of a ‘statistical ritual’. Rather than think about the proper ... [Read more...]

What do you want to see at useR 2012?

August 9, 2011 | David Smith

This year's useR! conference at Warwick University is less than a week away, but planning is already underway for useR! 2012, to be held at Vanderbilt University in Nashville. If you're planning to attend, conference organizer Frank Harrell is looking for your input: The 2012 R User Conference - useR! 2012 - will ... [Read more...]

What makes a hockey Hall-of-Famer?

August 9, 2011 | David Smith

At the JSM conference last week, I stopped by a great poster by Steve Salaga and Brian Mills, graduate students at University of Michigan's Department of Sport Management. The guys were clearly hockey fans, and had channelled their enthusiasm for a sport into an interesting statistical analysis of game and ... [Read more...]
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