Last Friday the Cologne R user group came together for two talks and a quiz at Eye/o, the company behind Adblock Plus, in Köln-Ehrenfeld. Eye/o were a great host, offering nibbles and drinks to warm up the event and pizza at the end.
Cologne R user meeting at Eye/o The first talk was given by Jiddu Alexander, a physicist turned freelance data scientist.
The 19th Cologne R user group meeting is scheduled for this Friday, 14 October 2016. We have three talks, followed by networking drinks.
Introduction to the tidyverse tools - Jiddu Alexander Performance profiling and improvement in R - Nils Glück Batch processing of R-Scripts with Excel - Klaus Jacobi Venue: Eyeo GmbH, Lichtstraße 25, 50825 Köln
For further details visit our KölnRUG Meetup site.
Last Thursday the Cologne R user group came together again. This time, our two speakers arrived from Bavaria, to talk about Spark and R Server. Introduction to Apache Spark Download slides Dubravko Dulic gave an introduction to Apache Spark and why Spark might be of interest to data scientists using R. Spark is designed for cluster computing, i.
Last Friday the Cologne R user group came together for the 17th time. This time, we were in for a special treatment, with two talks by psychologists!
But, there was nothing to fear, we were in safe hands, and for the first time, we met at the new Microsoft office in Cologne.
Lecture room at Microsoft, Cologne First up was Meik Michalke from the University of Düsseldorf presenting the RKWard project.
The 17th Cologne R user group meeting is scheduled for this Friday, 26 February 2016. We have two talks, followed by networking drinks.
Introduction to Bayesian Regression Models using Stan with the brms package - Paul-Christian Bürkner (Uni Münster) RKWard: A Graphical User Interface and Integrated Development Environment for Statistical Analysis with R - Meik Michalke (Uni Düsseldorf) Venue: Microsoft Deutschland, Holzmarkt 2a Cologne 50676 DE, Köln
The 16th Cologne R user group meeting is scheduled for this Friday, 4 December 2015 and we have great line up with three talks followed by networking drinks.
Monitoring process change using Bayesian methods (Mick Cooney) A common business problem is to evaluate the effect of a change of process, and this talk will discuss a straightforward approach to this using conjugate priors. Editing R files with DataJoy (Dietmar Janetzko) Brief introduction to the online collaborative data analysis platform DataJoy.
Last Friday the Cologne R user group came together for the 15th time. Since its inception over three years ago the group evolved from a small gathering in a pub into an active data science community, covering wider topics than just R. Still, R is the link and clue between the different interests. Last Friday’s agenda was a good example of this, with three talks touching on workflow management, web development and risk analysis.
Last Friday the Cologne R user group came together for the 14th time. For the first time we met at Startplatz, a start-up incubator venue. The venue was excellent, not only did they provide us with a much larger room, but also with table-football and drinks. Many thanks to Kirill for organising all of this!
Photo: Günter Faes We had two excellent advanced talks.
The next Cologne R user group meeting is scheduled for this Friday, 6 June 2015 and we have an exciting agenda with two talks followed by networking drinks.
Data Science at the Commandline (Kirill Pomogajko) An Introduction to RStan and the Stan Modelling Language (Paul Viefers) Please note: Our venue changed! We have outgrown the seminar room at the Institute of Sociology and move to Startplatz, a start-up incubator venue: Im Mediapark, 550670 Köln Drinks and Networking The event will be followed by drinks (Kölsch!
At last Friday’s Cologne R user group meeting we welcomed two Northerners from the left and right (or ‘right’ and ‘wrong’) side of the Rhine. Using R in Excel via R.NET Günter Faes and Matthias Spix
Download slides Günter and Michael presented examples of a new R Excel plugin ‘Calidris’ they developed using R.net. The plugin itself is written in C# and adds an R ribbon to Excel with pre-build functions.
The next Cologne R user group meeting is scheduled for this Friday, 6 March 2015 and we have an exciting agenda with two talks, followed by networking drinks: Using R in Excel via R.NET Günter Faes and Matthias Spix
MS Office and Excel are the ‘de-facto’ standards in many industries. Using R with Excel offers an opportunity to combine the statistical power of R with a familiar user interface.
Last week’s Cologne R user group meeting was the best attended so far, and it was a remarkable event - I believe not a single line of R code was shown. Still, it was an R user group meeting with two excellent talks, and you will understand shortly why not much R code needed to be displayed. Introduction to Julia for R Users Download slides Hans Werner Borchers joined us from Mannheim to give an introduction to Julia for R users.
The next Cologne R user group meeting is scheduled for this Friday, 12 December 2014.
We have an exciting agenda with two talks on Julia and Dynamic Linear Models: Introduction to Julia for R Users Hans Werner Borchers
Julia is a high-performance dynamic programming language for scientific computing, with a syntax that is familiar to users of other technical computing environments (Matlab, Python, R, etc.). It provides a sophisticated compiler, high performance with numerical accuracy, and extensive mathematical function libraries.
Last Friday we had guests from Belgium and the Netherlands joining us in Cologne. Maarten-Jan Kallen from BeDataDriven came from The Hague to introduce us to Renjin, and the guys from DataCamp in Leuven, namely Jonathan, Martijn and Dieter, gave an overview of their new online interactive training platform. Renjin Maarten-Jan gave a fascinating introduction to Renjin, an R interpreter in the Java virtual machine (JVM). Why?
The next Cologne R user group meeting is scheduled for this Friday, 12 September 2014.
We have a great agenda with international speakers: Maarten-Jan Kallen: Introduction to Renjin, the R interpreter for the JVM Jonathan Cornelissen, Martijn Theuwissen: DataCamp - An online interactive learning platform for R The event will be followed by drinks and schnitzel at the Lux. For further details visit our KölnRUG Meetup site.
The 10th Kölner R user meeting took place last Friday at the Institute of Sociology and to celebrate the anniversary we invited Andrie de Vries to join us from Revolution Analytics. Andrie is well known in the R community; he is the co-author of the R for Dummies book and an active contributor on stackoverflow.
Taking R to the Enterprise Andrie de Vries
Andrie de Vries: Taking R to the Enterprise.
The next Cologne R user group meeting is scheduled for this Friday, 23 May 2014.
To celebrate our 10th meeting we welcome: Andrie de Vries (Revolution Analytics and Co-author of R for Dummies): Taking R to the Enterprise Markus Gesmann: googleVis overview and recent developments Followed by drinks and schnitzel at the Lux.
Further details available on our KölnRUG Meetup site. Please sign up if you would like to come along.
Last week’s Cologne R user group meeting was all about R and databases. We had three talks from a generic overview on how to connect R to databases, to a specific example with kdb+ and perhaps the future with ArangoDB, a NoSQL database.
Connecting R with databases Diego de Castillo’s talk focused on the use of relational databases, such as PostgreSQL, SQLite and Oracle. For all these databases dedicated R drivers exist on CRAN that can be used in a generic way via the DBI package.
The next Cologne R user group meeting is scheduled for tomorrow, 26 February 2014. We are delighted to welcome: Diego de Castillo: R and databases Kim Kuen Tang: Hands on using R and kdb+ together Frank Celler: ArangoDB (Lightning Talk) Further details and the agenda are available on our KölnRUG Meetup site.
Please sign up if you would like to come along.
Last week’s Cologne R user group meeting was the best attended so far. Well, we had a great line up indeed. Matt Dowle came over from London to give an introduction to the data.table package. He was joined by his collaborator Arun Srinivasan, who is based in Cologne. Their talk was followed by Thomas Rahlf on Datendesign mit R (Data design with R).
data.table Download slides Matt’s goal with the data.
Quick reminder: The next Cologne R user group meeting is scheduled for this Friday, 13 December 2013. We are delighted to welcome: Matt Dowle and Arun Srinivasan: Introduction to data.table Thomas Rahlf: Book presentation - Datendesign mit R Further details and the agenda are available on our KölnRUG Meetup site.
Please sign up if you would like to come along. Notes from past meetings are available here.
The Cologne R user group met last Friday for two talks on split apply combine in R and XLConnect by Bernd Weiß and Günter Faes respectively, before the usual Schnitzel and Kölsch at the Lux.
Split apply combine in R The apply family of functions in R is incredible powerful, yet for newcomers often somewhat mysterious. Thus, Bernd gave an overview of the different apply functions and their cousins.
Quick reminder: The next Cologne R user group meeting is scheduled for this Friday, 18 October 2013. We will discuss and hear about the apply family of functions and the XLConnect package. Further details and the agenda are available on our KölnRUG Meetup site. Please sign up if you would like to come along. Notes from past meetings are available here. Thanks to Revolution Analytics, who sponsors the Cologne R user group as part of their vector programme.
Despite the hot weather and the beginning of the school holiday season in North Rhine Westphalia the Cologne R user group met yet again for two fascinating talks and beer and schnitzel afterwards.
Analysing Twitter data to evaluate the US Dollar / Euro exchange rates Dietmar Janetzko presented ideas to forecast US Dollar / Euro exchange rate movements for the following day. To forecast exchange rate movements, Dietmar distinguishes two school of thoughts.
Our 5th Cologne R user group meeting was the best attended meeting so far, with 20 members finding their way to the Institute of Sociology for two talks by Diego de Castillo on shiny and Stephan Holtmeier on cluster analysis, followed by beer and schnitzel at the Lux, a gastropub nearby.
Shiny Diego gave an overview of the design principles behind shiny, which provides a powerful API to build web apps in pure R.
Quick reminder: The next Cologne R user group meeting is scheduled for this Friday, 12 April 2013. We will discuss cluster analysis and shiny. Further details and the agenda are available on our KölnRUG Meetup site. Please sign up if you would like to come along. Notes from the last Cologne R user group meeting are available here.
Thanks also to Revolution Analytics, who sponsors the Cologne R user group as part of their vector programme.
The fourth Cologne R user meeting took place last Wednesday at the Institute of Sociology. Thanks to Bernd Weiß for hosting the event and Revolution Analytics for their sponsorship.
We had two fantastic talks by Klaus Jacobi and M.eik Michalke. Klaus talked about Eliminating cloud pixels in satellite images via chronological interpolation and Meik presented his new roxyPackage package, which makes it even easier to maintain R packages with roxygen2.
Quick reminder: The next Cologne R user group meeting is scheduled for tomorrow, 6 February 2013. All details and the agenda are available on the KölnRUG Meetup site. Please sign up if you would like to come along. Notes from the last Cologne R user group meeting are available here. Thanks also to Revolution Analytics, who are sponsoring the Cologne R user group as part of their vector programme.
The third Cologne R user meeting took place last Friday, 5 October 2012, at the Institute of Sociology.
The evening was sponsored by Revolution Analytics, who provided funding which went towards the Kölner R user group Meetup page. We had a good turn-out with 18 participants showing up and three talks by Dominik Liebl, Jonas Stein and Sarah Westrop. Photos: Günter Faes Dominik Liebl presented ideas of his forthcoming paper/vignette with Oualid Bada on Panel Data Analysis with Heterogeneous Time Trends.
The next Cologne R user group meeting is scheduled for 5 October 2012. All details and the agenda are available on the KölnRUG Meetup site. Please sign up if you would like to come along. Notes from the last Cologne R user group meeting are available here. Thanks also to Revolution Analytics, who are sponsoring the Cologne R user group as part of their vector programme. View Larger Map
The second Cologne R user meeting took place last Friday, 6 July 2012, at the Institute of Sociology. Thanks to Bernd Weiß, who provided the meeting room, we didn’t have to worry about the infrastructure, like we did at our first gathering. Again, we had an interesting mix of people turning up, with a very diverse background from chemistry to geo-science, energy, finance, sociology, pharma, physics, psychology, mathematics, statistics, computer science, telco, etc.
This post is a quick reminder that the next Cologne R user group meeting is only one week away. We will meet on 6 July 2012. The meeting will kick off at 18:00 with three short talks at the Institute of Sociology and will continue, even more informal, from 20:00 in a pub (LUX) nearby. All details are available on the KölnRUG Meetup site. Please sign up if you would like to come along.
The next Cologne R user group meeting is scheduled for 6 July 2012. All details are available on the new KölnRUG Meetup site. Please sign up if you would like to come along, and notice that there is also pub poll for the after “work” drinks. Notes from the first Cologne R user group meeting are available here. View Larger Map
The first Kölner R user meeting was great fun. About 20 useRs had turned up to exchange their ideas, questions and experience with R. Three talks about R & Excel, ggplot2 & XeLaTeX and Dynamical systems with R & simecol had kicked off the evening, with Kölsch (beer) losing our tongues further. Thankfully a lot of people had brought along their laptops, as unfortunately we lacked a cable to connect any of the computers to the installed projector.
Venue: Sion em Keldenich, Weyertal 47, 50937 Cologne, Germany, 6 p.m., 30 March 2012, View Larger Map
For more details and registration see the Kölner R User Group page.
Am 30. März 2012 möchte ich gerne das erste Kölner R Benutzer Treffen organisieren. Ich habe an den Treffen in London in den vergangen Jahren teilgenommen und hoffe auch in Köln Gleichgesinnte zu finden, die sich gerne bei einem Kölsch über R and das Leben unterhalten würden. I would like to organise the first R user group meeting in Cologne, Germany, on 30 March 2012. In the past few years I have participated at the London R user groups and I hope to find also like-minded people in Cologne, who would like to catch up over a Kölsch on R and life in general.