Monthly Archives: April 2011

Automatically Save Your Plots to a Folder

April 26, 2011
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Automatically Save Your Plots to a Folder

Suppose you're working on a problem that involves a loop for calculations. At each iteration inside the loop, you want to construct a plot. Not only do you want to see the plot, but you would like to save each plot for a presentation, report or paper...

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Bayesian job in Cambridge

April 26, 2011
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Bayesian job in Cambridge

Here is an email that could appeal to some readers: Job in Cambridge MRC-BSU – Bayesian statistician Career development fellow MRC Biostatistics Unit, Cambridge We are offering an exciting opportunity to work on Bayesian models for infectious disease dynamics. A statistician is required to contribute to a programme of research to develop inferential approaches to

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R Bloggers

April 26, 2011
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R Bloggers

I recently found a great resource for R in the blogosphere, the R Bloggers Blog Aggregator. Basically, the site aggregates posts from a bunch of blogs about R (like this one!) into a giant feed of uses for R. If you are interested in learning more ab...

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Running Phylip’s contrast application for trait pairs from R

April 26, 2011
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Running Phylip’s contrast application for trait pairs from R

Here is some code to run Phylip's contrast application from R and get the output within R to easily manipulate yourself. Importantly, the code is written specifically for trait pairs only as the regular expression work in the code specifically grabs da...

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Statistical Practice in Epidemiology using R

April 26, 2011
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Statistical Practice in Epidemiology using R

This is a long running course which usually takes place in Tartu, Estonia. This year we are hosting it at IARC in Lyon, France. The course is intended for epidemiologists and statisticians who wish to use R  for statistical modelling … Continue reading →

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Adonis (PERMANOVA) – Assumptions

April 26, 2011
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Adonis (PERMANOVA) – Assumptions

Before you use PERMANOVA (R-vegan function adonis) you should read the user notes for the original program by the author (Marti J. Anderson) who first came up with this method. An important assumtption for PERMANOVA is same "multivariate spread&qu...

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Designing and Analyzing Studies with Optmatch and RItools (Part 1)

April 25, 2011
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I am currently writing a brief “how-to” for the APSA Section on Experimental Research newsletter on using Optmatch and RItools. The complete paper (a work in progress) can be found on my github page. I have the basics of the paper sketched in, but I would love to get feedback from the online R community,...

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A Tiny Model of Evolution

April 25, 2011
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A Tiny Model of Evolution

I've always wanted to write a(n overly) simple model of evolution. The assumptions are minimalistic: only one species, for which each individual's genotype is represented as a one-dimensional real number, e.g. 7.4. Now, the fun stuff: I define a fu...

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4 lines of R to get you started using the Rook web server interface

April 25, 2011
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4 lines of R to get you started using the Rook web server interface

Jeffrey Horner's new Rook package provides a new interface for developing R-based web applications. Rook allows the same application to run in R's built-in web server or (soon) in the rApache module. This post shows how easy it is to use the package's Rhttpd class to get started with Rook.

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Job Search Part 4: Timing Beveridge Curve Movements During A Recession

April 25, 2011
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Job Search Part 4: Timing Beveridge Curve Movements During A Recession

This economics blogger feels like he would be cheating the reader if he did not include recent work done by Barnichon and Figura (2010) on timing movements in the unemployment rate during recessions. That is why this is part 4 of my special 5 part mini...

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