Monthly Archives: December 2009

Because it’s Friday: Detecting Cylons

December 11, 2009
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Because it’s Friday: Detecting Cylons

Battlestar Galactica (Ronald D Moore's reimagined version of the rather cheesy 70's sci-fi series) has been my favourite TV series (of any genre) of recent years, so I'm especially excited that Chris Bilder has given me the chance to blog about it. Chris, an Associate Professor in the Department of Statistics at the University of Nebraska-Lincoln, recently published an...

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A Lot of Deaths are Partly Self-Induced

December 11, 2009
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I’m a little surprised by Andrew Gelman’s post today, doubting the wisdom of a passage from Gary Becker’s work that reads: According to the economic approach, therefore, most (if not all!) deaths are to some extent “suicides” in the sense that they could have been postponed if more resources had been invested in prolonging life.

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Times Series Methods versus Recurrence Relations

December 10, 2009
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This term, I’ve been sitting in on Rene Carmona’s course on Modern Regression and Time Series Analysis. Much of the material on regression covered in the course was familiar to me already, but I’ve never felt that I had a real command of times series analysis methods. When Carmona defined the AR(p) model in class

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APIs: I wish the life sciences would learn from social networks

December 10, 2009
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APIs: I wish the life sciences would learn from social networks

I was prompted by a thread on the apparent decline of FriendFeed to look for evidence of declining participation in my networks. First, a quick and dirty Ruby script, tls.rb to grab the Life Scientists feed and count the likes and comments: #!/usr/bin/ruby require 'rubygems' require 'json/pure' require 'net/http' require 'open-uri' def format_date(d) if d

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Demography package

December 10, 2009
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Demography package

This package seems useful for demographers.

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The R Graphical Manual

December 10, 2009
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R has a lot of functions. Add in all the packages on CRAN, and then there's a lot of functions. You can search through the contents of the function documentation at places like Rseek.org, but the R Graphical Manual takes a different tack on exploring the functions in R: rather than browsing by the name or description of the...

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“Introducing Monte Carlo Methods with R” is out!

December 9, 2009
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“Introducing Monte Carlo Methods with R” is out!

That’s it!, “Introducing Monte Carlo Methods with R” is out, truly out, I have received a copy from Springer by express mail today! (If you need any further proof, it is also advertised as In stock by Amazon.) Given that the printer exactly reproduces the pdf file sent to Springer, there is no element of

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OpenMx with mixture distribution support

December 9, 2009
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OpenMx with mixture distribution support

A new version of OpenMx is out; this time it comes with mixture distribution, according to this announcement. I can't wait to test the new features out!

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Announcing R-bloggers.com: a new R news site (for bloggers by bloggers)

December 9, 2009
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Announcing R-bloggers.com: a new R news site (for bloggers by bloggers)

I already wrote about R-bloggers on the R mailing list, so it only seems fitting to write about it more here. I will explain what R-bloggers is and then move to explain what I hope it will accomplish. R-Bloggers.com is a central hub of content collected from bloggers who write about R (in English) and if

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R Function Usage Frequencies, Addendum

December 9, 2009
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Since people have asked, here is a GitHub page with all of the code used to generate my R function usage analyses: cran-function-usage-analysis.

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