2177 search results for "twitter"

Journal of Statistical Software. Vol. 40

April 12, 2011
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The latest edition of the Journal of Statistical Software is out, with plenty of interesting articles for R users. A must-read is Hadley Wickham's article on "The Split-Apply-Combine Strategy for Data Analysis", which makes a compelling argument for the use of the plyr package to partition datasets and apply sub-group analyses. Also, anyone who hasn't yet purchased a copy...

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Monday Links: 23andMe, RStudio, PacBio+Galaxy, Data Science One-Liners, Post-Linkage RFA, SSH

April 11, 2011
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Monday Links: 23andMe, RStudio, PacBio+Galaxy, Data Science One-Liners, Post-Linkage RFA, SSH

Lately I haven't written as many full length posts as usual, but here's a quick roundup of a few links I've shared on Twitter (@genetics_blog) over the last week:First, 23andMe is having a big DNA Day Sale ($108) for the kit + 1 year of their personal ...

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Monday Links: 23andMe, RStudio, PacBio+Galaxy, Data Science One-Liners, Post-Linkage RFA, SSH

April 11, 2011
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Monday Links: 23andMe, RStudio, PacBio+Galaxy, Data Science One-Liners, Post-Linkage RFA, SSH

Lately I haven't written as many full length posts as usual, but here's a quick roundup of a few links I've shared on Twitter (@genetics_blog) over the last week:First, 23andMe is having a big DNA Day Sale ($108) for the kit + 1 year of their personal ...

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RStudio Beta 2 (v0.93)

April 11, 2011
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RStudio Beta 2 (v0.93)

RStudio Beta 2 (v0.93) is available for download today. We’ve gotten incredibly helpful input from the R community and this release reflects a lot of that feedback. The release notes have the full details on what’s new. Some of the highlights include: Source Editor Enhancements Highlight all instances of selected text Insert spaces for tabs (soft-tabs)

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Mixtures in Madrid

April 10, 2011
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Mixtures in Madrid

As I already did two years ago, in connection with the double degree between UAM and Dauphine, I will give a short graduate course at the Universidad Autonoma de Madrid (UAM). It will be part of the regular fourth year statistics course and will focus on mixtures, as given in of Bayesian Core. It will

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R Reference Card for Data Mining

April 9, 2011
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R Reference Card for Data Mining

R Reference Card for Data Mining is available for free download at http://www.rdatamining.com. The website also provides another free document: R and Data Mining — Examples and Case Studies.

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The Budget Compromise: Mining Tweets

April 9, 2011
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The Budget Compromise: Mining Tweets

After a week as SAS Gobal Forum, I've been pretty excited about some of the text mining presentations that I got to see. I couldn't wait to get back to work to at least try something.  After getting home I found a tweet from @imusicmash sharing a post from the Heuristic Andrew blog that shared text...

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Fixing aberrant files using R and the shell: a case study

April 7, 2011
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Fixing aberrant files using R and the shell: a case study

Once in a while, you embark on what looks like a simple computational procedure only to encounter frustration very early on. “I can’t even read my file into R!” you cry. Step back, take a deep breath and take note of what the software is trying to tell you. Most times, you’ve just missed something

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Buffon versus Bertrand in R

April 7, 2011
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Buffon versus Bertrand in R

Following my earlier post on Buffon’s needle and Bertrand’s paradox, above are four outcomes corresponding to four different generations (among many) of the needle locations. The upper right-hand side makes a difference in the number of hits (out of 1000). The R code corresponding to this generation was made in the métro, so do not

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Alpha shapes with R and lattice

Alpha shapes with R and lattice

What are the alpha shapes?: “The concept of alpha shapes formalizes the intuitive notion of “shape” for spatial point set data, which occurs frequently in the computational sciences. An alpha shape is a concrete geometric object that is uniquely defined for a particular point set. Alpha shapes are generalizations of the convex hull. Given a

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