Publications by Tal Galili
Book review: 25 Recipes for Getting Started with R
Recently I was asked by O’Reilly publishing to give a book review for Paul Teetor new introductory book to R. After giving the book some attention and appreciating it’s delivery of the material, I was happy to write and post this review. Also, I’m very happy to see how a major publishing house like O’Reilly is producing more and m...
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Beeswarm Boxplot (and plotting it with R)
(The image above is called a “Beeswarm Boxplot” , the code for producing this image is provided at the end of this post) The above plot is implemented under different names in different softwares. This “Scatter Dot Beeswarm Box Violin – plot” (in the lack of an agreed upon term) is a one-dimensional scatter plot which is like “stripc...
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The Popularity of Data Analysis Software (R vs SAS vs SPSS, etc.)
Robert Muenchen, the author of R for SAS and SPSS Users (A great book I’m proud to have on my shelf), has published this week an article in which he compares the popularity/market-share of many of the common statistical packages including R, SAS, SPSS and many others. The full article is available on r4stats.com at: “The Popular...
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Article about plyr published in JSS, and the citation was added to the new plyr (version 1.5)
The plyr package (by Hadley Wickham) is one of the few R packages for which I can claim to have used for all of my statistical projects. So whenever a new version of plyr comes out I tend to be excited about it (as was when version 1.2 came out with support for parallel processing) So it is no surprise that the new release of plyr 1.5 got me cu...
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How to upgrade R on windows 7
Background – time to upgrade to R 2.13.0 The news of the new release of R 2.13.0 is out, and the R blogosphere is buzzing. Bloggers posting excitedly about the new R compiler package that brings with it the hope to speed up our R code with up to 4 times improvement. So it is time to upgrade, and bloggers are here to help. Some wrote how to ...
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Exporting R graphics as LaTeX code – version 0.6.1 of the tikzDevice package is out
(Guest post on R-bloggers by Charlie Sharpsteen) Cameron and I are pleased to announce version 0.6.0 of the tikzDevice package which should be available shortly at your local CRAN mirror! The tikzDevice makes it possible to export R graphics as LaTeX code that can be included in other documents or compiled into stand alone figure...
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R workshop in Hamilton, Ontario, May 24 and 25
John Fox will be teaching a two-day introductory R workshop at McMaster University in Hamilton, Ontario, on May 24 and 25. The workshop will largely be based on materials from Fox and Weisberg, An R Companion to Applied Regression, Second Edition (Sage, 2011). Further information about the workshop is available at: https://www.soc...
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VideoLectures.net Recommender System Competition
A Guest post to R-bloggers by Bart Blaszczyk. * * * * * * * * This week a new data competition for the best recommendation system begins. Similar in a form to the famous Netflix Prize, asks data scientists, algorithm geeks and statisticians to devise the most accurate algorithm that suggests in personalized way what movies may ...
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Competition: $45,000 for identification of substances from electromagnetic signatures
Canadian hi-tech company offers $45,000 for the best algorithm for identification of substances from electromagnetic signatures. —————————————— FIND Technologies Inc. is a Canadian company that owns novel sensor technology for measuring electromagnetic signatures of materials. The sensor is a robust, inexpensive in...
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Fittesmodel.com: A user-friendly way to conduct empirical research together
(A guest post by Camiel de Koning) ————– When trying to replicate, verify or extend empirical research of others, a researcher generally encounters many time-consuming barriers and there are often many prerequisites. Fittestmodel has the objective to overcome many of these problems, by presenting a webapplication that allo...
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