A new release 0.6.6 of the digest package is now on CRAN and in Debian. This release brings the xxHash non-cryptographic hash function by Yann Collet, thanks to several pull requests by Jim Hester. After the upload of version 0.6.5 we uncovered anoth... [Read more...]

A very minor bugfix release of RcppRedis is now on CRAN. The zcount function now returns the correct type. Changes in version 0.1.3 (2014-12-10) Bug fix setting correct return type of zcount Courtesy of CRANberries, there i... [Read more...]

If you’ve ever… felt like you’re playing Simon Says with mouse clicks when repeatedly extracting data in chunks from a front-end interface to a database on the web, well, you probably are. There’s probably a better solution – Selenium. ever used XML or httr in R or urllib2 ... [Read more...]

As a user Imagine that you are starting to learn how to use a specific R package, lets call it foo. You will look at the vignette (if there is one), use help(package = foo), or look at the reference manual (for example, devtools' ref man). Eventually, you will open ... [Read more...]

The graph below summarizes the projections from a variety of sources. This week’s summary includes projections from: CBS’s Dave Richard, Fantasy Football Sharks, CBS’s Jamey Eisenberg, ESPN, Fantasy Football Today,[...] The post Wide Receiver Gold Mining – Week 15 appeared first on Fantasy Football Analytics. [Read more...]

So, before revealing a slight wrinkle on the last strategy I wrote about, I’d like to clear up a bit … Continue reading → [Read more...]

Elections are the most important events of political life. Their results determine who gets to be in government for the next few years. But how long do elections and their results capture the public's attention? In this blog post we take a look at Wikipedia page access statistics to find ... [Read more...]

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The O'Reilly Data Scientist Survey for 2014 is out, with fresh data on the salaries and tools used by data scientists. Jon King has a summary of the results, but not much has changed since last year: median income is down very slightly ($100k in 2013 vs $98k in 2014), and the most ... [Read more...]

Most search engines have a "did you mean?" feature, where suggestions are given in the presence of likely typos. And while search engines use sophisticated NLP methods on their vast amounts of user-generated data to create accurate suggestions, you can get by with some ancient spellchecker techniques. So a little ... [Read more...]

A few months ago I posted the script that I use to set up my R/JAGS working environment on an Amazon EC2 instance.Since then I've largely transitioned to using R/Stan to estimate my models. So, I've updated my setup script (see below). There are a few... [Read more...]

The visualization of spatial data is one of the most popular applications when using R. This tutorial is an introduction to the visualization of spatial data and map making in R. The following issues will be addressed: Import anduse of shapefiles in R (shapefile is a file format designed for ... [Read more...]

These days I am following a couple of master projects dealing with renewable energy potentials at the global scale. We wanted to try and compute these potential using only free data and see how far we could go.For wind speed there are plenty of resourc... [Read more...]

Logistic RegressionNeural NetsNaive BayesDecision Trees [...] [Read more...]

Tweet The case of Michael Brown, an unarmed black teenager, who was shot and killed on August 9th, by Darren Wilson, a white police officer, in Ferguson has driven public opinion around the globe to the suburb of St. Louis. After few weeks, on Nov. 24, the St. Louis County prosecutor ... [Read more...]

Today, Tim Bowles gave this presentation on the vegan package to the Davis R Users’ Group. The screencast and slides are below. You can also download Tim’s RStudio project with all the code, data, figures, and slides presented here. Thanks to Tim for a great session! [Read more...]

I’m back!  6 months after my second child was born, I’ve finally made it back to my blog with something fun to write about.  I recently read through the excellent Machine Learning with R ebook and was impressed by the caret … Continue reading → [Read more...]

I’ve updated one of my most widely read blog posts, Why R is Hard to Learn. It focuses on the aspects of R which tend to trip up beginners. The new version is over twice as long as the original … Continue reading → [Read more...]

A few weeks ago, RcppAnnoy had its initial release 0.0.2 and subsequent update in release 0.0.3. The latter brought Windows support, thanks to a neat pull request by Qiang Kou. RcppAnnoy wraps the small, fast, and lightweight C++ template header libr... [Read more...]

In the first post of this new blog I’ll outline how I’ve set the blog up. writing posts in Rmarkdown converting posts to markdown from R push to Github where Jekyll renders the markdown organising all as an RStudio project What I wanted I wanted to be able ... [Read more...]