Blog Archives

Managing R package dependencies

September 23, 2014
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Managing R package dependencies

One of my take aways from last week's EARL conference was that R is more and more growing out of its academic roots into the enterprise. And with that come some challenges, e.g. how do I ensure consistent and systematic access to a set of R packages in an organisation, in particular when one team is providing...

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Notes from the Kölner R meeting, 12 September 2014

September 16, 2014
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Notes from the Kölner R meeting, 12 September 2014

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.RenjinMaarten-Jan gave a fascinating introduction to Renjin,...

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Next Kölner R User Meeting: Friday, 12 September 2014

September 9, 2014
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Next Kölner R User Meeting: Friday, 12 September 2014

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...

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Zoom, zoom, googleVis

September 2, 2014
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Zoom, zoom, googleVis

The Google Charts API is quite powerful and via googleVis you can access it from R. Here is an example that demonstrates how you can zoom into your chart. In the example below I set the maximum zoom level to 5% of the chart. Drag and pan with a left mo...

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ChainLadder 0.1.8 released

August 26, 2014
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ChainLadder 0.1.8 released

Over the weekend we released version 0.1.8 of the ChainLadder package for claims reserving on CRAN. What is claim reserving?The insurance industry, unlike other industries, does not sell products as such but promises. An insurance policy is a promise by the insurer to the policyholder to pay for future claims for an upfront received premium. As a result...

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googleVis 0.5.5 released

August 19, 2014
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googleVis 0.5.5 released

Earlier this week we released googleVis 0.5.5 on CRAN. The package provides an interface between R and Google Charts, allowing you to create interactive web charts from R. This is mainly a maintenance release, updating documentation and minor issues.Sc...

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GrapheR: A GUI for base graphics in R

August 12, 2014
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GrapheR: A GUI for base graphics in R

How did I miss the GrapheR package? The author, Maxime Hervé, published an article about the package in the same issue of the R Journal as we did on googleVis. Yet, it took me a package update notification on CRANbeeries to look into GrapheR in more detail - 3 years later! And...

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Thanks to R Markdown: Perhaps Word is an option after all?

August 5, 2014
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Thanks to R Markdown: Perhaps Word is an option after all?

In many cases Word is still the preferred file format for collaboration in the office. Yet, it is often a challenge to work with it, not so much because of the software, but how it is used and abused. Thanks to Markdown it is no longer painful to inclu...

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Hit and run. Think Bayes!

July 29, 2014
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Hit and run. Think Bayes!

At the R in Insurance conference Arthur Charpentier gave a great keynote talk on Bayesian modelling in R. Bayes' theorem on conditional probabilities is strikingly simple, yet incredibly thought provoking. Here is an example from Daniel Kahneman to test your intuition. But first I have to start with Bayes' theorem.Bayes' theoremBayes' theorem states that given...

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Notes from the 2nd R in Insurance Conference

July 22, 2014
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Notes from the 2nd R in Insurance Conference

The 2nd R in Insurance conference took place last Monday, 14 July, at Cass Business School London. This one-day conference focused once more on applications in insurance and actuarial science that use R. Topics covered included reserving, pricing, loss...

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