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by Matt Parker, Data Scientist at Microsoft One of the great advantages of R's openness is its extensibility. R's abundant packages are the most conspicuous example of that extensibility, and Revolution R Enterprise is a powerful example of how far it can stretch. But R is also part of an ... [Read more...]

I am happy to announce that my new course, Mapmaking in R with Choroplethr, is now available. In honor of its launch I am offering a 15% discount to anyone who purchases before January 1. You will also be able to attend a Q&A webinar with me on January 5th. Creating ... [Read more...]

R is not one of those languages where there is only one way of doing something, the language is blessed/cursed with lots of ways of doing the same thing. Teaching R to professional developers is easy in the sense that their fluency with other languages will enable them to ... [Read more...]

A few days ago I posted a poll directed towards R (and Shiny Users).  Thank you to all who participated for your time and thoughtful responses.  A RMarkdown Report (Code on Github) highlights the results to the easy-to-summarize questions.  A few interesting insights: 78% of R users use Windows.  The largest ... [Read more...]

A few days ago I posted a poll directed towards R (and Shiny Users).  Thank you to all who participated for your time and thoughtful responses.  A RMarkdown Report (Code on Github) highlights the results to the easy-to-summarize que... [Read more...]

Writing my first post about the German data scientist job market, I was surprised to find such a low number of open positions. The scripts are easy to extend to a cross-country comparison. To simplify the analysis, this time I focused on the Indeed website only. As a baseline, I ... [Read more...]

A new release 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 R, possibly with Rcpp as well as other packages. This release both upgrades the version of Boost to the recently-released ... [Read more...]

A new release 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 R, possibly with Rcpp as well as other packages. This release both upgrades the version of Boost to the recently-released ... [Read more...]

In the exercises below we cover the basics of factors. Before proceeding, first read chapter 4 of An Introduction to R, and the help pages for the cut, and table functions. Answers to the exercises are available here. Exercise 1 If x = c(1, 2, 3, 3, 5, 3, 2, 4, NA), what are the […] [Read more...]

Despite the ggplot2 project — the most popular data visualization package for R — being in maintenance mode, RStudio's Hadley Wickham has given the R community a surprise gift with a version 2.0.0 update for ggplot2. According to Hadley this is a "huge" update with more than 100 fixes and improvements. The most significant ... [Read more...]

Hello everyone, hope you had a wonderful Christmas! In this post I will show you how to do k means clustering in R. We will use the iris dataset from the datasets library. What is K Means Clustering? K Means Clustering is an unsupervised learning algorithm that tries to cluster ... [Read more...]

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In our last post we quickly went over how to create a new R-Markdown document and embed a Plotly graph in it. In this post we’ll get into more details around how to control code output using chunk options. As shown in our previous post, for the embedded R ... [Read more...]

R-Markdown is a great way to create dynamic documents with embedded chunks of R code. The document is self contained and fully reproducible which makes it very easy to share. This post will be the first in a multi part series on how to embed Plotly graphs in R-Markdown documents ... [Read more...]

Twitter bots One of my holiday projects was to get my head around how Twitter bots work, and the best (only?) way of course is to make one. Apparently about one in seven Twitter accounts is a computer program rather than a human user (although of course there are humans ... [Read more...]

Everytime you release a product or service you want to receive feedback from users so you know what they like and what they don’t. Sentiment Analysis can help you. I will show you how to create a simple application in R and Shiny to perform Twitter Sentiment Analysis in ... [Read more...]

tl;dr: Get every book about R & related topics for just $5 at Packt Publishing until the end of this year. Packt Publishing is currently offering a special sales campaign. You can buy every book for only 5 Dollar until the end of this year. We think, this is a great chance ... [Read more...]

On this Christmas Day, allow me to share a couple of interesting takes on Mariah Carey's modern Christmas classic, All I Want for Christmas is You. (Unlike most pop songs, Carey wrote the melody and lyrics herself.) If you've somehow managed to avoid hearing the song over the past decade, ... [Read more...]