Modeling Contagion Using Airline Networks in R

May 30, 2015
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Modeling Contagion Using Airline Networks in R

I first became interested in networks when reading Matthew O’Jackson’s 2010 paper describing networks in economics. At some point during the 2014 ebola outbreak, I became interested in how the disease could actually come to the U.S. I was caught up with work/classes at the time, but decided to use airline flight data to at least explore the … Continue reading...

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Update on Snowdoop, a MapReduce Alternative

May 29, 2015
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Update on Snowdoop, a MapReduce Alternative

In blog posts a few months ago, I proposed an alternative to MapReduce, e.g. to Hadoop, which I called “Snowdoop.” I pointed out that systems like Hadoop and Spark...

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Chances of going to college based on parent’s income

May 29, 2015
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Chances of going to college based on parent’s income

What is the chance of a kid going to college based on parent's income? The post Chances of going to college based on parent’s income appeared first on...

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R: the Excel Connection

May 29, 2015
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R: the Excel Connection

By Andy Nicholls, Head of Consulting As companies increasingly look beyond the scope of what is logistically possible in Excel more and more companies are approaching Mango looking for...

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Bio7 2.1 Release Candidate RC2 for MacOSX Available

May 29, 2015
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Bio7 2.1 Release Candidate RC2 for MacOSX Available

29.05.2015 I published a MacOSX release candidate for Bio7 2.1 based on Eclipse 4.5 RC2. This release was tested on MacOSX 10.10. The final release will be published after...

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testthat 0.10.0

May 29, 2015
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testthat 0.10.0

testthat 0.10.0 is now available on CRAN. Testthat makes it easy to turn the informal testing that you’re already doing into formal automated tests. Learn more at http://r-pkgs.had.co.nz/tests.html. Install...

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RStudio 0.99 released

May 29, 2015
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If you download R or Revolution R Open, the R interface is pretty stark — you'll get a command prompt, and not much else. That's fine for quick, interactive...

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Data Science: from Small to Big Data

May 29, 2015
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Data Science: from Small to Big Data

This Tuesday, I will be in Leuven (in Belgium) at the ACP meeting to give  a talk on Data Science: from Small to Big Data. The talk will take place in the Faculty...

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Roman dataviz and inference in complex systems

May 29, 2015
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Roman dataviz and inference in complex systems

I’m in Rome at the International Workshop on Computational Economics and Econometrics. I gave a seminar on Monday on the ever-popular subject of data visualization. Slides are here. In...

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R courses

R courses

For persons interested in advancing their knowledge on R and data science with R, BNOSAC offers a range of courses for R users. These cover courses on - R analytics (Statistical...

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Static and moving circles

May 29, 2015
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Static and moving circles

After the previous post on the packcircles package for R someone suggested it would be useful to be able to fix the position of selected circles. As a...

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Analysis of gene expression timecourse data using maSigPro

May 28, 2015
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Analysis of gene expression timecourse data using maSigPro

About a year ago, I did a little work on a very interesting project which was trying to identify blood-based biomarkers for the early detection of stroke. The data...

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Qualitative Text Analysis in R with RQDA

May 28, 2015
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Last Friday at the Davis R Users’ Group, Mallory Johnson gave a presentation on RQDA, an R-based GUI tool for doing coding on documents for use...

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SparkR preview by Vincent Warmerdam

May 28, 2015
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SparkR preview by Vincent Warmerdam

SparkR preview in Rstudio Apache Spark is the hip new technology on the block. It allows you to write scripts in a functional style and the technology behind it...

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RevoScaleR’s Naive Bayes Classifier rxNaiveBayes()

May 28, 2015
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RevoScaleR’s Naive Bayes Classifier rxNaiveBayes()

by Joseph Rickert, Because of its simplicity and good performance over a wide spectrum of classification problems the Naïve Bayes classifier ought to be on everyone's short list of...

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No THIS Is How You Dplyr and Data.Table!

May 28, 2015
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So, I got some great solutions to my dplyr mutation problem to share. Just wait until you see these things! Remember, I was having trouble reconciling two date columns into...

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An R Enthusiast Goes Pythonic!

May 28, 2015
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An R Enthusiast Goes Pythonic!

I’ve spent so many years using and broadcasting my love for R and using Python quite minimally. Having read recently about machine learning in Python, I decided to take...

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2015 Fantasy Football Projections using OpenCPU

May 28, 2015
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2015 Fantasy Football Projections using OpenCPU

We are releasing our 2015 fantasy football projections in an OpenCPU app.  The app allows you to calculate custom rankings/projections for your league based on your league settings.  The...

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Beta unblockers

May 28, 2015
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Beta unblockers

A couple of weeks ago, we've uploaded the new version of BCEA on CRAN, to include the function implementing our method for the computation of the EVPPI based on INLA-SPDE $-$...

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Free Kaggle Machine Learning Tutorial for R

May 28, 2015
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Free Kaggle Machine Learning Tutorial for R

Always wanted to compete in a Kaggle competition, but not sure you have the right skill set? We created a free interactive tutorial to help you out! Together with the team behind Kaggle,...

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Comrades Marathon Medal Predictions

May 28, 2015
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Comrades Marathon Medal Predictions

With only a few days to go until race day, most Comrades Marathon athletes will focusing on resting, getting enough sleep, hydrating, eating and giving a wide berth to...

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Live Earthquake Map with Shiny and Google Map API

May 27, 2015
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Live Earthquake Map with Shiny and Google Map API

In the post Exchange data between R and the Google Maps API using Shiny I presented a very simple way to allow communication between R and javascript...

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Creating Styled Google Maps in ggmap

May 27, 2015
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Creating Styled Google Maps in ggmap

In R, my go to package for creating maps is ggmap. Using this, one can create maps using a variety of services, including Google maps. I just...

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8 new R jobs (2015-05-27)

May 27, 2015
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8 new R jobs (2015-05-27)

This is the bimonthly post (for 2015-05-27) for new R Jobs from R-users.com. Employers: visit this link to post a new R job to the R community (it’s free and quick). Job seekers: please follow the links below to learn...

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R tops 2015 KDnuggets Software Poll

May 27, 2015
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R tops 2015 KDnuggets Software Poll

R is the leading choice for Predictive Analytics / Data Mining / Data Science software according to the results of the 2015 KDnuggets Software Poll, now in its 16th...

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R #1 by Wide Margin in Latest KDnuggets Poll

May 27, 2015
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R #1 by Wide Margin in Latest KDnuggets Poll

The results of the latest KDnuggets Poll on software for Analytics, Big Data and Data Mining are out, and R has moved into the #1 position by a wide...

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Is This How You Dplyr?

May 27, 2015
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Yesterday I ran into a fairly complex issue regarding dplyr mutation and I wanted to get your take on my solution. I have two data frames with the same identifiers...

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BMC favors source code plagiarism

May 27, 2015
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BMC favors source code plagiarism

I found source code plagiarism a year ago and reported this case to BMC Systems Biology: I listed source code of many functions that are exactly copied from GOSemSim with...

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drat 0.0.4: Yet more features and documentation

A new version, now at 0.0.4, of the drat package arrived on CRAN yesterday. Its name stands for drat R Archive Template, and it helps with easy-to-create and...

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