Monthly Archives: January 2011

Bad kitty!

January 20, 2011
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Bad kitty!

The cat function bugs me a little. There are two quirks in particular that I find irritating on occasions that I use it. Firstly, almost everything that I want displayed onscreen, I want on its own line. > cat("cat messes up my command prompt position") cat messes up my command prompt position> So it would

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sab-R-metrics: Intermediate Boxplots and Histograms

January 20, 2011
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sab-R-metrics: Intermediate Boxplots and Histograms

Last week, I began talking about using the base graphics in R. Those graphics were pretty bland, and my hope for the next two posts is to introduce some interesting additions to the basic graphics that come from R: color, legends, lines, shapes, multiple graphs side-by-side, text, point types, and custom axes. If you have missed...

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Call for proposals for writing a book about R (via Chapman & Hall/CRC)

January 20, 2011
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Rob Calver wrote an interesting invitation on the R mailing list today, inviting potential authors to submit their vision of the next great book about R. The announcement originated from the Chapman & Hall/CRC publishing houses, backed up by an impressive team of R celebrities, chosen as the editors of this new R books series,

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40 Fascinating Blogs for the Ultimate Statistics Geek!

January 20, 2011
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I am happy to report that ByteMining is listed on “40 Fascinating Blogs for the Ultimate Statistics Geek“! Some of the ones that I frequently read, or are written by Twitter friends/followers (in no particular order): R-bloggers, an aggregate site containing blog posts tagged as posts about R. High quality content. Statistical modeling, causal inference and social science. This one is...

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Submit your talks for the R user conference

January 19, 2011
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useR! 2011, the annual R user conference supported by the R Foundation for Statistical Computing, will be held this year in the United Kingdom at the University of Warwick (which is located, oddly enough, in Coventry). Last year's conference featured dozens of presentations on R's use in pretty much every domain of analysis, science and research. There were talks...

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The ultimate exam excuse…

January 19, 2011
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The ultimate exam excuse…

A few days after my R exam (available in French here), I received this email from the department secretary: Pour information cet étudiant est venu me trouver jeudi soir, catastrophé car il venait de constater que son stylo “PILOT Frixion”, stylo semble-t-il recommandé par certains enseignants, ne se contentait pas d’effacer la page sur son

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pgfSweave 1.1.3 and Beyond

January 19, 2011
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pgfSweave 1.1.3 is now on CRAN. This release adds a few new features and fixes some bugs The pesky Rplots.pdf file is not generated anymore Brand new vignette by Hans Ekbrand on the use of pgfSweave with large data sets based on this site. New example on using caching by Yihui Xie Reusing code chunks

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RcppBDT 0.1.0

January 18, 2011
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The family of Rcpp packages just grew by one: the first 0.1.0 release of RcppBDT is now on CRAN. RcppBDT stands for Rcpp Boost Date_Time. It employs what we call Rcpp modules: a mechanism which provides easier ways to expose C++ functions and classe...

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A simple test to predict coronary artery disease

January 18, 2011
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Coronary artery disease (CAD) results in blockages to the blood vessels that supply the heart and, if left untreated, can lead to heart attacks and even death. In fact, CAD is the leading cause of death in North America and many other countries. It's important to detect CAD as soon as possible, to improve the chances of a successful...

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R GUIs, IDEs, and text editors

January 18, 2011
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R GUIs, IDEs, and text editors

When deciding what program to write your R code in it is important to consider a number of factors so you can keep organized and work efficiently.  I found this article useful for getting started.  Text editors include syntax highlightin...

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