The new ropensci graphql package is now on CRAN. It implements R bindings to the libgraphqlparser C++ library to parse GraphQL syntax and export the syntax tree in JSON format: graphql2json("{ field(complex: { a: { b: [ $var ] } }) }") A syntax parser is perhaps not super useful to most end-users, but can ... [Read more...]

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A new version of RcppGSL in now on CRAN and in Debian. The RcppGSL package provides an interface from R to the GNU GSL using our Rcpp package. This release is one that entirely focused on maintenance. CRAN asked us to change on aspect relative to vig... [Read more...]

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When performing some kind of analysis in R it is usually common to use data stored in basic formats such as .csv or .Rdata, and then present the analysis using a .Rmd file. Linpe package allows to send a single file instead of two. It has been created by Andrea ... [Read more...]

I was never that much into JavaScript until I was introduced to D3.js. This open source JS library provides the features for dynamic data manipulation and visualization and allows users to become active participants in data visualization process. As such, … Continue reading → [Read more...]

When we teach “R for statistics” to groups of scientists (who tend to be quite well informed in statistics, and just need a bit of help with R) we take the time to re-work some tests of model quality with the appropriate significance tests. We organize the lesson in terms ... [Read more...]

"The moment he was set at liberty, he looked up to the sky and down to the ground, and, stamping with his foot, in a contemplative mood, said, Eppur si muove [And yet it moves], meaning the earth."1Giuseppe Baretti, on Galileo GalileiGalileo Galilei knew the Earth revolved around the ... [Read more...]

Welcome to the third and last part of the “lubridate” exercises. If you missed Part 1 and 2 then please refer to the links below: Part 1 Part 2 In this part, I’ll cover the following topics: 1. Durations (exact spans of time) 2. Periods (relative spans of time) 3. Rounding dates As always, in […] [Read more...]

by Udayan Kumar, Data Scientist at Microsoft Beginning in 2016, Microsoft rolled out a preview of Microsoft R Server (MRS) for Azure HDInsight clusters. This service provides a preconfigured instance of R server with Spark/Hadoop that can be provisioned within minutes. Recent blog posts (by Max Kaznady and David Smith) ... [Read more...]

Lay your dreams, little darling, in a flower bed; let that sunshine in your hair (Where the skies are blue, The Lumineers) I discovered this nice visualization some days ago. The author is also the creator of Highcharter, an incredible R wrapper for Highcharts javascript libray and its modules. I ... [Read more...]

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The european R users meeting [eRum] is going to start in just 7 days. We expect over 250 participants, 10 invited talks, 47 regular talks, 13 lightning talks and 12 posters. In order to handle that much content we scheduled 18 sessions [+ workshops]. Find the program of the conference here or here. In the … Czytaj dalej Program ... [Read more...]

A week ago, I received a request for refereeing a paper for the Journal of Open Source Software, which I have never seen (or heard of) before. The concept is quite interesting with a scope much broader than statistical computing (as I do not know anyone in the board and ... [Read more...]

How to automate web-scrapping .R files with R CMD BATCH and the Windows Task Scheduler. [Read more...]

It's been a long time since I watched the The Simpsons, but I was always under the impression that Bart was the primary character. Perhaps it was all the Do the Bartman and "Cowabunga!" nonsense from the 90s. Anyway, data scientist Todd W Schneider used R to analyze the scripts ... [Read more...]