How to use R to draw 3D scatterplots in Minecraft? Let’s see. Minecraft is a game about placing blocks and going on adventures (source). Blocks are usually placed by players but there are add-ons that allow to add/modify/remove blocks through external API. And this feature is being ... [Read more...]

Can you spot the difference between this plot: And this one: You are right! The latter has an embedded piece of R code. What for? It’s a call to a function aread from archivist – a package that manages external copies of R objects. This piece of code was added ... [Read more...]

Shiny is a great tool for interactive exploration (and not only for that). But, due to its architecture, all objects/results that are generated are stored in a separate R process so you cannot access them easily from your R console. In some cases you may wish to retrieve a ... [Read more...]

Only 6 days left to the end of the call for papers for eRum 2016! Register and submit your talk proposal at www.erum.ue.poznan.pl. European R users meeting will be a great place to learn and share ideas on R. Moreover, we have already confirmed the following invited talks: ... [Read more...]

Six months ago we’ve introduced ‘The Proton’ – a console based R game with six data wrangling puzzles. Around 15-30 minutes of fun with data. The game is on CRAN in the package BetaBit. And just few days ago we’ve added a second game – frequon(). Eight puzzles related with ... [Read more...]

Let’s see how to collect all linear regression models that you will ever create in R. It’s easy with the trace() function. A really powerful, yet not that popular function, that allows you to inject any R code in any point of a body of any function. Useful ... [Read more...]

The European R users meeting (eRum) is an international conference that aims at integrating users of the R language. eRum 2016 will be held on October 13 and 14, 2016, in Poznan, Poland at the Poznan University of Economics and Business. We already confirm the following invited speakers: Rasmus Bååth, Romain Francois, Ulrike ... [Read more...]

European R users meeting (eRum 2016) will take place between October 12th and 14th. We already have confirmed great invited speakers such as: Rasmus Bååth, Romain François, Ulrike Grömping, Matthias Templ, and Heather Turner, as well as strong representation from Poland: Przemysław Biecek (omg, it’s me!), ... [Read more...]

There is a saying that there are two groups of people: those who are already doing backups and those who will. So, how this is linked with reproducible research and R? If your work is to analyze data then you often face a need to restore/recreate/update results that ... [Read more...]

With the summer holiday season coming to an end, we are back with Warsaw Meetings of R Users (Warszawskie Spotkania Entuzjastów R). Three meetings ahead: September 26 th (this Saturday) – let’s start with data-hack-day (DHD). Having data from Polish Seym (votes and transcripts), we are going to prepare some ... [Read more...]

Next meeting of Warsaw R Enthusiasts (SER = Spotkania Entuzjastów R) will take place on December 8. We are going to start with Roger Bivand talk about spatial statitics (R Foundation / NHH, author of many R packages). The second talk, by Bartosz Meglicki (IPI PAN), will introduce the SERATRON – fusion of ... [Read more...]

Have you wondered how stable are weather forecasts? Since curiosity + R = fun, let’s do a little test. I’ve used a function getWeatherForecast {SmarterPoland} (github release) to download weather forecasts from the Dark Sky API. Hourly forecasts are downloaded every 10 minutes and stored in this repository based on archivist ... [Read more...]

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Mateusz Żółtak asked me to spread the word about his new R package for parameterized SQL queries. Below you can find the copy of package vignette. If you work with SQL in R you may find it useful. Mateusz Żółtak The package RODBCext is an extension of the RODBC database ... [Read more...]

Wonder how submissions to the DataVis contest at useR!2014 (see contest webpage) look like? There are 8 submissions in the track 1 (schools matter) and 10 submissions in the track 2 (inequalities in academic achievement). You can see all submissions (w... [Read more...]

7 days to go for submissions in the DataVis contest at useR!2014 (see contest webpage). Note that the contest is open for all R users, not only conference participants. Submit your solution soon! PISA dataset allows to challenge some ,,common opinions”, like are boys or girls better in math / reading. But, ... [Read more...]

16 days to go for submissions in the DataVis contest at useR!2014 (see contest webpage). The contest is focused on PISA data and students’ skills. The main variables that reflect pupil skills in math / reading / science are plausible values e.g. columns PV1MATH, PV1READ, PV1SCIE in the dataset. ... [Read more...]

I hope you have already heard about DataVis contest at useR!2014 (in case you did not, here is more information: http://www.oecd.org/pisa/pisaproducts/datavisualizationcontest.htm). As a jury member I am not going to submit any work, but I am going to encourage you to play with ... [Read more...]

Familiar with R and DataVis? Take a try in PISA data visualisation contest for useR2014 participants. There are two contest tracks. In each you can win 700$. More information about the contest can be found here: http://www.oecd.org/pisa/pisaproducts/datavisualizationcontest.htm. The prizes are funded by The Organisation ... [Read more...]

OECD has just released a new PISA in Focus titled “Do parents’ occupations have an impact on student performance?”. A shiny app is an add-on to this article, you can open it from this link: http://beta.icm.edu.pl/PISAoccupations2012/. The app allows for comparisons of average performance in ... [Read more...]