R-statistics blog

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• Recent Posts

  • Printing nested tables in R – bridging between the {reshape} and {tables} packages
  • Interactive Graphics with the iplots Package (from “R in Action”)
  • Merging two data.frame objects while preserving the rows’ order
  • Aggregation and Restructuring data (from “R in Action”)
  • Top 20 R posts of 2011 (and some R-bloggers statistics)
  • data.frame objects in R (via “R in Action”)
  • UseR! 2011 slides and videos – on one page
  • edimax EW-7811Un USB wireless – connecting to a network (on ubuntu 11.10)
  • Diagram for a Bernoulli process (using R)
  • The present and future of the R blogosphere (~7 minute video from useR2011)

• Archives

  Select Month January 2012 December 2011 November 2011 October 2011 August 2011 June 2011 April 2011 March 2011 February 2011 January 2011 December 2010 October 2010 September 2010 August 2010 July 2010 June 2010 May 2010 April 2010 March 2010 February 2010 December 2009 October 2009 September 2009 July 2009 March 2009

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• R-bloggers

  • Berlin’s children
    Few years ago, a newspaper claimed the block I live in — Prenzlauer Berg in Berlin — is the most fertile region in Europe. It was a hoax, as this (German) newspaper article points out. (The article has become quite famous because it coined the term... […]
  • Accelerating analytics at MSU with Revolution R Enterprise
    Erik Sigur, Information Technologist for the Department of Statistics and Probability at Michigan State University, writes at ReadWriteWeb about using Revolution R Enterprise to provide high-performance computation in R to the researchers in his department: Our search for a more effective version of R ultimately brought us to a product called Revolution R En […]
  • Forbes: Top 20 influencers in Big Data
    Haydn Shaughnessy at The Forbes blog provides a list of the "Top 20 Influencers in Big Data", and I'm humbled to report that yours truly is listed there at #2. It's an instantaneous ranking based on the social-media tracking tool Traakr, but it's still great to be listed alongside writers for SiliconAngle, GigaOM, and KDNuggets (and […]
  • New R User Groups in Austin, Adelaide
    It's awesome to see so many local R user groups kicking off in 2011! Yet another is the Austin R User Group in Austin, Texas. They've already held their first informal get-together, and the first formal meeting on February 23 will be devoted to data management techniques in R. Props to Sandy Donlon for organizing the group! And I'm so pleased […]
  • Why don’t we hear more about Adrian Dantley on ESPN? This graph makes me think he was as good an offensive player as Michael Jordan.
    In my last post I complained about efficiency not being discussed enough by NBA announcers and commentators. I pointed out that some of the best scorers have relatively low FG% or TS%. However, via the comments it was pointed out that top scorers need ... […]
  • Large search spaces using R
    I'm working on some really interesting stuff at the moment, the details of which I can't discuss for reasons of national security (not really). However, one of the things I've been doing a lot of is searching though lots of different combina... […]
  • How many pages in Scott Walker Recall Petition PDF files?
    Computer Assisted Reporting In an online press release on Tuesday the Wisconsin Government Accountability Board announced they would put all 153,335 pages of PDF copies of the Scott Walker recall petition online later that day. The GAB announced the PD... […]
  • Green Disk Sizing
    I finally got around to completing item 5 on my 2011 list concerning electrical power consumed by a magnetic HDDs. The semi-empirical statement is:Power ∝ Nplatters × Ω2.8 × Dplatter4.6 . . . (1)where Nplatters is the number of... […]
  • Japan Quake Map 2010-2011
    1 Introduction “The 3.11 Tohoku Earthquake in Japan”, It did serious damage to Japan. I have attempted gaining […]
  • speed of R, C, &tc.
    My Paris colleague (and fellow-runner) Aurélien Garivier has produced an interesting comparison of 4 (or 6 if you consider scilab and octave as different from matlab) computer languages in terms of speed for producing the MLE in a hidden Markov model, using EM and the Baum-Welch algorithms. His conclusions are that matlab is a lot […]