Publications by Markus Gesmann
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 [1] 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 what a wonderful gem GrapheR is. The package provid...
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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.Screen shot of some of the Google ChartsNew to googleVis? Review the examples of all g...
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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 p...
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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 mouse button to zoom in; use a right mouse click to zoom out again. The functionality ...
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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 RThe event will be followed by drinks ...
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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 fas...
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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 packages to others?Two ...
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Running RStudio via Docker in the Cloud
Deploying applications via Docker container is the current talk of town. I have heard about Docker and played around with it a little, but when Dirk Eddelbuettel posted his R and Docker talk last Friday I got really excited and had to have a go myself.My aim was to rent some resources in the cloud, pull an RStudio Server container and...
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Visualising the seasonality of Atlantic windstorms
Last week Arthur Charpentier sketched out a Markov spatial process to generate hurricane trajectories. Here, I would like to take another look at the data Arthur used, but focus on its time component. According to the Insurance Information Institute, a normal season, based on averages from 1980 to 2010, has 12 named storms, six hurric...
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googleVis 0.5.6 released on CRAN
Version 0.5.6 of googleVis was released on CRAN over the weekend. This version fixes a bug in gvisMotionChart. Its arguments xvar, yvar, sizevar and colorvar were not always picked up correctly. Thanks to Juuso Parkkinen for reporting this issue.Example: Love, or to loveA few years ago Martin Hilpert posted an interesting case study for motion ch...
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