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 a few minutes, I’ll be speaking on Inference in Complex Systems, … Continue reading → [Read more...]

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 Machine Learning with R, Text mining with R, Applied Spatial modelling... [Read more...]

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 first attempt, I've added an optional weights argument to the circleLayout function. Weights can be in the range 0-1 inclusive, where a ... [Read more...]

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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 in qualitative text analysis. Here’s the video, and you can view the slides here [Sorry about reverb in the video] Resources The RQDA ... [Read more...]

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 will allow you to run iterative tasks very quickly on a cluster of machines. It’s benchmarked to be quicker than ... [Read more...]

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 machine learning algorithms. Now, with version 7.4 we have a high performance Naïve Bayes classifier in Revolution R Enterprise too. ... [Read more...]

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 a minimum value in the presence of NA values. Here’s the fake data agai... [Read more...]

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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 projections[...] The post 2015 Fantasy Football Projections using OpenCPU appeared first on Fantasy Football Analytics. [Read more...]

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 $-$ I've also already mentioned this here.While this is a stable versio... [Read more...]

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 anybody who looks even remotely ill. They will probably also be thinking a lot about Sunday's race. What will the weather ... [Read more...]

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 using shiny.This is an example of a practical approach for which that same system can be used to create a useful tool ... [Read more...]

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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 recently discovered the ability to create a styled version of a Google map. Let's go through this process to create a black and ... [Read more...]

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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 year. Each of the 28,000 participants selected one or more tools they had used in the last year from a list of 93 options, and R ... [Read more...]