Publications by Markus Gesmann
Display googleVis charts within RStudio
The preview version 0.98.441 of RStudio introduced a new viewer pane to render local web content and with that it allows me to display googleVis charts within RStudio rather than in a separate browser window. I think this is a rather nice feature and hence I have updated the plot method in googleVis to use the RStudio viewer pane as...
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googleVis 0.4.7 with RStudio integration on CRAN
In my previous post, I presented a preview version of googleVis that provided an integration with RStudio’s Viewer pane (introduced with version 0.98.441).Over 80% in my little survey favoured the new default output mechanism of googleVis within RStudio. Hence, I uploaded googleVis 0.4.7 on CRAN over the weekend. However, there were...
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Predicting claims with a bayesian network
Here is a little Bayesian Network to predict the claims for two different types of drivers over the next year, see also example 16.16 in [1]. Let’s assume there are good and bad drivers. The probabilities that a good driver will have 0, 1 or 2 claims in any given year are set to 70%, 20% and 10%, while for bad drivers the probabilit...
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Not only verbs but also believes can be conjugated
Following on from last week, where I presented a simple example of a Bayesian network with discrete probabilities to predict the number of claims for a motor insurance customer, I will look at continuos probability distributions today. Here I follow example 16.17 in Loss Models: From Data to Decisions [1]. Suppose there is a class of risks that i...
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R in Insurance Conference, London, 14 July 2014
Following the very positive feedback that Andreas and I have received from delegates of the first R in Insurance conference in July of this year, we are planning to repeat the event next year. We have already reserved a bigger auditorium. The second conference on R in Insurance will be held on Monday 14 July 2014 at Cass Business School in London...
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Next Kölner R User Meeting: 13 December 2013
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.tableThomas Rahlf: Book presentation – Datendesign mit RFurther details and the agenda are available on our KölnRUG Meetup site. Please sign up if yo...
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Review: Kölner R Meeting 13 December 2013
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...
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Whale charts – Visualising customer profitability
The Christmas and New Year's break is over, yet there is still time to return unwanted presents. Return to Santa was the title of an article in the Economist that highlighted the impact on online retailers, as return rates can be alarmingly high. The article quotes a study by Christian Schulze of the Frankfurt School of Finance and M...
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How many more R-bloggers posts can I expect?
I noticed that the monthly number of posts on R-bloggers stopped increasing over the last year. Indeed, the last couple of months saw a decline in posts compared to the previous year. Thus, has most been said and written about R already? Who knows? Well, I took a stab at looking into the future. However, I can tell you already that I ...
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Fun with the Raspberry Pi
Since Christmas I have been playing around with a Raspberry Pi. It is certainly not the fastest computer, but what a great little toy! Here are a few experiences and online resources that I found helpful.SetupInitially I connected the Raspberry Pi via HDMI to a TV; together with keyboard, mouse and an old USB Wifi adapter. Everything ...
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