Monthly Archives: March 2014

Simple Pharmacokinetics with Jags

March 2, 2014
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Simple Pharmacokinetics with Jags

In this post I want to analyze a first order pharmocokinetcs problem: the data of study problem 9, chapter 3 of Rowland and Tozer (Clinical pharmacokinetics and pharmacodynamics, 4th edition) with Jags. It is a surprising simple set of data, but still there is enough to play around with.Data, model and analysisThe data is simple enough. One subject's concentration...

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Release of jsonlite 0.9.4

March 2, 2014
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Release of jsonlite 0.9.4

A new version of the jsonlite package was released to CRAN. In addition to adding small new features, this release cleans up code and documentation. Some annoying compiler warnings inherited from RJSONIO are fixed and the reference manual is a bit more concise. Also some new examples of public JSON...

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Call for abstracts to present at useR! 2014

March 2, 2014
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We are happy to inform you that abstract submission for useR! 2014 is now available online, see http://user2014.stat.ucla.edu/ The R User Conference, useR! 2014 is scheduled for July 1-3, 2014 at the University of California, Los Angeles. Before the official program, half-day tutorials will be offered on Monday, June 30. Participants are encouraged to submit The post

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Reading OECD.Stat into R

March 1, 2014
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Reading OECD.Stat into R

OECD.Stat is a commonly used statistics portal in the research world but there are no easy ways (that I know of) to query it straight from R. There are two main benefits of querying OECD.Stat straight from R: 1. Create reproducible analysis (something that is easily lost if you have to download excel files) 2.

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The Statistics behind “Verification by Multiplicity”

March 1, 2014
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The Statistics behind “Verification by Multiplicity”

There’s a new post up at the ninazumel.com blog that looks at the statistics of “verification by multiplicity” — the statistical technique that is behind NASA’s announcement of 715 new planets that have been validated in the data from the Kepler Space Telescope. We normally don’t write about science here at Win-Vector, but we do Related posts:

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Oldies but Goldies: Statistical Graphics Books

March 1, 2014
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Oldies but Goldies: Statistical Graphics Books

I just wanted to plug for three classical books on statistical graphics that I really enjoyed reading. The books are old (that is, older than me) but still relevant and together they give a sense of the development of exploratory graphics in general and the graphics system in R specifically as all three books were written at Bell Labs...

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Use GDAL from R Console to Split Raster into Tiles

March 1, 2014
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Use GDAL from R Console to Split Raster into Tiles

When working with raster datasets I often encounter limitations caused by the large size of the files. I thus wrote up a little R function that invokes gdal_translate which would split the raster into parts.The screenshot to the left shows a raster in QGIS that was split into four parts with the below script.## get filesnames...

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C++11 versus R Standalone Random Number Generation Performance Comparison

March 1, 2014
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If you are writing some C++ code with the intent of calling it from R or even developing it into a package you might wonder whether it is better to use the pseudo random number library native to C++11 or the R standalone library. On the one hand users of your package might have an The post

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RcppEigen 0.3.2.0.2

March 1, 2014
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A new bug-fix / maintenance release of RcppEigen is now on CRAN. RcppEigen brings the Eigen C++ template library for linear algebra to R. This release updates the RcppEigen.package.skeleton() function for a needed change in R, updates and extends ...

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Free Sweave Course

March 1, 2014
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Free Sweave Course

“Free Sweave Course” (download 7,0MB), Paola Berchialla, Department of Public Health and Microbiology, University of Torino. … Continue reading →

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