Old is New: XML and rvest

May 22, 2015
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Huh… I didn’t realize just how similar rvest was to XML until I did a bit of digging. After my wonderful experience using dplyr and tidyr recently, I decided to revisit some of my old RUNNING code and see if it could use an upgrade by swapping out the XML dependency with rvest. Ultra Signup:...

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Tutorial Recap: Analyzing Census Data in R

May 22, 2015
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Tutorial Recap: Analyzing Census Data in R

A big thanks to Gabriela de Quieroz for organizing the San Francisco R-ladies Meetup, where I spent a few hours yesterday introducing people to my census-related R packages. A special thanks to Sharethrough...

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Revolution R Open 3.2.0 now available for download

May 22, 2015
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The latest update to Revolution R Open, RRO 3.2.0, is now available for download from MRAN. In addition to new features, this release tracks the version number of the...

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The R Foundation announces new mailing list ‘R-package-devel’

May 22, 2015
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At last week’s monthly meeting, the R foundation has decided to create a new mailing list in order to help R package authors in their package development and testing....

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Exact computation of sums and means

May 21, 2015
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Exact computation of sums and means

A while ago, I came across a mention of the Python math.fsum function, which sums a set of floating-point values exactly, then rounds to the closest floating point value. This...

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BH release 1.58.0-1

A new released of BH is now on CRAN. BH provides a large part of the Boost C++ libraries as a set of template headers for use by...

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Vega.jl Rebooted – Now with 100% More Pie and Donut Charts!

May 21, 2015
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Vega.jl Rebooted – Now with 100% More Pie and Donut Charts!

          Mmmmm, chartjunk! Rebooting Vega.jl Recently, I’ve found myself without a project to hack on, and I’ve always been interested in learning more about browser-based...

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First Day Highlights from the Extremely Large Databases Conference

May 21, 2015
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First Day Highlights from the Extremely Large Databases Conference

by Joseph Rickert The 8th XLDB (Extremely Large Databases) Conference open at Stanford on Tuesday with an outstanding program. This conference has been providing leadership in the "Big Data"...

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Introductory Point Pattern Analysis of Open Crime Data in London

May 21, 2015
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Introductory Point Pattern Analysis of Open Crime Data in London

IntroductionPolice in Britain (http://data.police.uk/) not only register every single crime they encounter, and include coordinates, but also distribute their data free on the web.They have two ways...

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Course on using Oracle R Enterprise

Course on using Oracle R Enterprise

BNOSAC will be giving from June 08 up to June 12 a 5-day crash course on the use of R using Oracle R Enterprise. The course is given...

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How To Analyze Data: 21 Graphs that Explain the Same-Sex Marriage Case, Public Opinion, & Supreme Court

May 21, 2015
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How To Analyze Data: 21 Graphs that Explain the Same-Sex Marriage Case, Public Opinion, & Supreme Court

The nine Justices on the United States Supreme Court recently took up a case about same-sex marriage. The question in Obergefell v. Hodges is whether states are required to...

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RInside 0.2.13

A new release 0.2.13 of RInside is now on CRAN. RInside provides a set of convenience classes which facilitate embedding of R inside of C++ applications and programs,...

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Open soure software has changed the way we do business

May 20, 2015
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Earlier this month TechCrunch published an article of mine, "The Business Economics And Opportunity Of Open-Source Data Science". With this article I wanted to share how open-source software has...

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Teaching R course? Use analogsea to run your customized RStudio in Digital Ocean!

May 20, 2015
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Teaching R course? Use analogsea to run your customized RStudio in Digital Ocean!

Two years ago I taught an introductory R/Shiny course here at The Jackson Lab. We all learnt a lot. Unfortunately not about Shiny itself, but rather about incompatibilities between...

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Put Google Scholar citations on your personal website with R, scholar, ggplot2 and cron

May 20, 2015
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Put Google Scholar citations on your personal website with R, scholar, ggplot2 and cron

I have been looking for a solution to put my Google Scholar citations on my personal website for quite some time now. Some apps/gadgets seem to have existed to do...

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Are Canadian newspapers painting false pictures with data?

May 20, 2015
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Are Canadian newspapers painting false pictures with data?

The Canadian newspaper, Globe and Mail, is a leader in diction and style, but it may need improvement in the ‘grammar of graphics’.Globe’s recent depiction of...

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First Steps with Structural Equation Modeling

May 20, 2015
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2015-05-21 23_11_54-Clipboard

Last Friday at the Davis R Users’ Group, Grace Charles gave a presentation on structural equation modeling in R using the Lavaan package. Here’s...

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Databases – an Ideal Application for R6?

May 20, 2015
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Over the years I have tried to simplify and streamline my access to financial historic data. All different solutions I tried (see here, for example) so far have been...

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More postdoctoral opportunities at IARC

May 20, 2015
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More postdoctoral opportunities at IARC

If you want to want to work with R and JAGS on a hard multivariate measurement error problem in nutritional epidemiology, then take a look at this advert. http://www.iarc.fr/en/vacancies/postdoc/postdoc_NEP_June2015.pdf...

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Clusters Powerful Enough to Generate Their Own Subspaces

May 20, 2015
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Clusters Powerful Enough to Generate Their Own Subspaces

Cluster are groupings that have no external label. We start with entities described by a set of measurements but no rule for sorting them by type. Mixture modeling makes...

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Benchmarking Random Forest Implementations

May 19, 2015
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Benchmarking Random Forest Implementations

I currently have the need for machine learning tools that can deal with observations of...

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Fast parallel computing with Intel Phi coprocessors

May 19, 2015
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Fast parallel computing with Intel Phi coprocessors

by Andrew Ekstrom Recovering physicist, applied mathematician and graduate student in applied Stats and systems engineering We know that R is a great system for performing statistical analysis. The...

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TidyR Challenge: Data.Table Solution

May 19, 2015
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Arun Srinivasan is the man! Once he saw that his data.table solution to the TidyR Challenge had an issue, he fixed it! His solution is below along with a...

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[R] Kenntnis-Tage 2015: The first holistic R Event in the German-speaking community

May 19, 2015
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[R] Kenntnis-Tage 2015: The first holistic R Event in the German-speaking community

The event aims at connecting R users from all industrial and academic sectors and facilitating the interconnectedness of the German-speaking R community as well as the exchange of practical...

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Bio7 2.1 for Linux 64-bit and Windows 32-bit released

May 19, 2015
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Bio7 2.1 for Linux 64-bit and Windows 32-bit released

19.05.2015 After the 64-bit release of Windows the Linux 64-bit and Windows 32-bit release can be downloaded at: http://bio7.org Linux installation: The installation of Bio7 is similar to the...

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Unsupervised Google Maps image classification

May 19, 2015
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Unsupervised Google Maps image classification

This is a guest post by Florian Detsch Prerequisites Required packages First, we need to (install and) load some packages required for data processing and visualization. The below code...

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Interactive charts in R

May 19, 2015
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Interactive charts in R

I’m giving a talk tomorrow at the Edinburgh R usergroup (EdinbR) on how to get started building interactive charts in R. I’ll talk about rCharts as a great general entry...

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How Predictable is the English Premier League?

May 19, 2015
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How Predictable is the English Premier League?

The reason why football is so exciting is uncertainty. The outcome of any match or league is unknown, and you get to watch the action unfold without knowing what’s...

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Posterior predictive output with Stan

May 18, 2015
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Posterior predictive output with Stan

I continue my Stan experiments with another insurance example. Here I am particular interested in the posterior predictive distribution from only three data points. Or, to put it...

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