Monthly Archives: June 2014

7 new R jobs (for June 30th 2014)

June 30, 2014
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r_jobs

This is the bimonthly R Jobs post (for 2014-06-30), based on the R-bloggers’ sister website: R-users.com. If you are an employer who is looking to hire people from the R community, please visit this link to post a new R job (it’s free, and registration takes less than 10 seconds). If you are a job seekers, please follow the links below to learn more and apply for your job of interest (or visit previous...

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Shiny cheat sheet

June 30, 2014
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Shiny cheat sheet

Shiny v0.10 comes with a quick, handy guide. Use the Shiny cheat sheet as a quick reference for building Shiny apps. The cheat sheet will guide you from structuring your app, to writing a reactive foundation with server.R, to laying out and deploying your app.     You can find the Shiny cheat sheet along with

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Example 2014.8: Estimate power for an interaction, by simulation

June 30, 2014
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Example 2014.8: Estimate power for an interaction, by simulation

In our last entry, we demonstrated how to simulate data from a logistic regression with an interaction between a dichotomous and a continuous covariate. In this entry we show how to use the simulation to estimate the power to detect that interaction. ...

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R/Finance 2014 Review

June 30, 2014
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It's been more than a month since R/Finance 2014, and my job has finally slowed down enough to allow me to write down my thoughts (though I'm writing this over two days during my train to and from Chicago).The comments below are based on my personal ex...

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Submissions in the DataVis contest at useR!2014

June 30, 2014
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Wonder how submissions to the DataVis contest at useR!2014 (see contest webpage) look like? There are 8 submissions in the track 1 (schools matter) and 10 submissions in the track 2 (inequalities in academic achievement). You can see all submissions (w...

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Presentations of the seventh Torino R net meeting – 27 Mar 2014

June 30, 2014
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Presentations of the seventh Torino R net meeting – 27 Mar 2014

welcome and presentation (download 0,1MB), Torino R net organisers; Processing and analysis methods for DNA methylation array data (download 1,4 MB), Giovanni Fiorito, Complex Systems for Life Sciences, University of Turin; Temporal Dominance of Sensations (TDS) data analysis using R (download 4,8 MB), Silvia … Continue reading →

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R/Rmetrics in Paris [alas!]

June 29, 2014
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R/Rmetrics in Paris [alas!]

Today I gave a talk on Bayesian model choice in a fabulous 13th Century former monastery in the Latin Quarter of Paris… It is the Collège des Bernardins, close to Jussieu and Collège de France, unbelievably hidden to the point I was not aware of its existence despite having studied and worked in Jussieu since

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The TaoTeProgramming R package

June 29, 2014
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The TaoTeProgramming R package

I’d like to do a song of great social and political import. The code that created the illustrations in Tao Te Programming is now available as the TaoTeProgramming package on CRAN. The sea is just flat hills And they are both just smooth mountains. The package contains just over 1000 lines of code.  More than The post

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stone flakes IV

June 29, 2014
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stone flakes IV

In this post I want to try something new, a causal graphical model. The aim here is just as much to get myself a feel what these things do as to understand how the stone flakes data fit together. DataData are stone flakes data which I analyzed previous...

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Transforming a Matrix in Parallel using RcppParallel

June 28, 2014
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Transforming a Matrix in Parallel using RcppParallel

The RcppParallel package includes high level functions for doing parallel programming with Rcpp. For example, the parallelFor function can be used to convert the work of a standard serial “for” loop into a parallel one. This article describes using RcppParallel to transform an R matrix in parallel. Serial Version First a serial version of the matrix transformation. We take the square root of each...

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