Monthly Archives: March 2012

BoRdeaux (France): the first French R useR conference

March 30, 2012
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The first French R useR conference will be held in Bordeaux on July 2-3. The Rencontres R are conceived as a place to present and share ideas on using the R statistical software. This meeting is designed to be a nationwide event where various topics belong, such as graphical tools, applied statistics, biostatistics, bayesian statistics,

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Bootstrap example

March 30, 2012
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Bootstrap example

Bootstrap your way into robust inference. Wow, that was fun to write.. Introduction Say you made a simple regression, now you have your . You wish to know if it is significantly different from (say) zero. In general, people look … Continue reading →

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Slow R graphics via SSH

March 30, 2012
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I do most of my R work on a server via SSH.  Viewing graphics (i.e. plot()) can be excruciatingly slow through the SSH pipe, but it's easy to make it fast.  Simply run:        X11.options(type="Xlib") once in the R session.  Tags:  R

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UPDATE: Install R 2.14.2 or R 2.15 in Debian Squeeze

March 29, 2012
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Since not so long, I upgraded  the version of R that is included in the Debian repositories (2.11.1 in Squeeze) and I was very happy with it since 2010. But there was some packages that I could not install and then, I decided to upgrade R despite ...

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R-bloggers

March 29, 2012
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R-bloggers

OK, like the nightclub Kenan and Kel founded in Rigby’s shop, we all know this blog is ‘duh bomb’ (or will be as I add more than my solitary post). However, there are other good R blogs. I thoroughly recommend signing up to the R-b...

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See how Deloitte uses R for actuarial analysis

March 29, 2012
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Many thanks to Jim Guszcza (Predictive Analytics lead at Deloitte Consulting and Assistant Professor at UW-Madison) who gave a great webinar presentation yesterday on actuarial analysis with R. Jim's demo (starting at the 20 minute mark in the video replay below) is a great way to get a sense of how R is used for exploratory data analysis and...

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Dividing the Sample Set in two (Validation & Training)

March 29, 2012
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Dividing the Sample Set in two (Validation & Training)

We have in the Demo sample set “66” samples.  In this post we´ll see one way to divide the set in two parts: one for “Validation” and another for Training or Calibration.The selection will be random. And we are going to use the command:

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Functional regression, INLA, and how to build the World’s Slowest Fourier Transform

March 29, 2012
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Functional regression, INLA, and how to build the World’s Slowest Fourier Transform

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Psychotherapies PubMed battle

March 29, 2012
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Psychotherapies PubMed battle

Ever wondered how different psychotherapy orientations match up in a PubMed battle? Continue reading to find out and to see how to test this using R and Ggplot2.

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PK models in R and in Julia

March 29, 2012
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1.1 Pharmacokinetic models with an analytic solution Pharmacokinetics is the study of the absorption and elimination of drugs and their metabolites in the body. As described in the wikipedia article there are several parameters, such rate constants,...

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