Monthly Archives: August 2011

Maiden voyage

August 23, 2011
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Maiden voyage

WhoMe. I'm an associate professor of Statistics at Youngstown State University in Youngstown, Ohio, USA. I've been using R for about 7 years, Emacs about 3 years, git about 1 year, and Org-Mode for less than a year.WhatI want this blo...

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Subjugation to the Sigmas

August 23, 2011
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Subjugation to the Sigmas

No doubt you've heard about the tyranny of the 9s in reference to computer system availability. You're probably also familiar with the phrase six sigma, either in the context of manufacturing process quality control or the improvement of business processes. As we discovered in the recent Guerrilla Data Analysis Techniques class, the two concepts are related.

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Popular topics at the BioStar Q&A site

August 23, 2011
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Popular topics at the BioStar Q&A site

Which topics are the most popular at the BioStar bioinformatics Q&A site? One source of data is the tags used for questions. Tags are somewhat arbitrary of course, but fortunately BioStar has quite an active community, so “bad” tags are usually edited to improve them. Hint: if your question is “How to find SNPs”, then

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Drawdown Visualization

August 22, 2011
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Drawdown Visualization

Drawdown is my favorite measure of risk.  It picks up extended autocorrelated pain often not seen in risk measures, and best illustrates frustration, panic, and loss of confidence (Drawdown Control Can Also Determine Ending Wealth).  I though...

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More useR! 2011 roundups

August 22, 2011
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If you missed last week's worldwide R user conference at the University of Warwick, several attendees have posted informative roundups of the event. Check out these posts from Patrick Burns, Karl Broman, Colin Gillespie, Pairach Piboonrungroj and Richie Cotton (which features a rare, good Statistics joke). My own roundup of the conference was posted on Friday, in case you...

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Webinar Wednesday Aug 24: Revolution R Enterprise, 100% R and More

August 22, 2011
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A heads-up that I'll be giving a free webinar this Wednesday, August 24. In 30 minutes, I'll give an overview of the open-source R project and the additional features of Revolution R Enterprise: R users already know why the R language is the lingua franca of statisticians today: because it's the most powerful statistical language in the world. Revolution...

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Bayesian analysis: Comparing algorithms Part 1?

August 22, 2011
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Bayesian analysis: Comparing algorithms Part 1?

I recently had the opportunity to engage in some Bayesian analysis at work. I was able to state the problem in terms of the lognormal distribution, and took advantage of JAGS and its integration with "R" using the R2jags package. The client was very ha...

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Tenure track position in systematics at the University of Vermont

August 22, 2011
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Tenure track position in systematics at the University of Vermont

There is an awesome position opening up for an assistant professor in systematics at the University of Vermont. Below is the announcement, and see the original post at the Distributed Ecology blog. Why is this related to R? One can do a lot of systemat...

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RTextTools v1.3 Released + Rstem Now Available on CRAN

RTextTools v1.3 was released on August 21, and the package binaries are now available on CRAN. This update fixes a major bug with the stemmers, and it is highly recommended you upgrade to the latest version. Other changes include optimization of existing functions and improvements to the documentation.Additionally, Duncan Temple Lang has graciously

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SIGKDD 2011 Conference — Day 1 (Graph Mining and David Blei/Topic Models)

August 22, 2011
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SIGKDD 2011 Conference — Day 1 (Graph Mining and David Blei/Topic Models)

I have been waiting for the KDD conference to come to California, and I was ecstatic to see it held in San Diego this year. AdMeld did an awesome job displaying KDD ads on the sites that I visit, sometimes multiple times per page. That’s good targeting! Mining and Learning on Graphs Workshop 2011 I had originally planned to attend the...

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