Publications by Markus Gesmann
Reserving based on log-incremental payments in R, part III
This is the third post about Christofides' paper on Regression models based on log-incremental payments [1]. The first post covered the fundamentals of Christofides' reserving model in sections A – F, the second focused on a more realistic example and model reduction of sections G – K. Today's post will wrap up the paper with sect...
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Follow the ants to richness
A friend of mine told me the secret of making money at the stock market. “It's easy”, he said.All I would have to do is to buy a big jar of ants. Then I should observe the ants movement on my kitchen table, while following the stock market. I shall keep the ants which walk in line with the stock market and remove those who don't....
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Next Kölner R User Meeting: 6 February 2013
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 Colo...
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Review: Kölner R Meeting 6 February 2013
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 interpol...
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New Data Scientist role at Lloyd’s
Lloyd’s of London is looking for a Data Scientist as part of the Analysis team. See Lloyd’s career web site for more details. Related To leave a comment for the author, please follow the link and comment on their blog: mages' blog. R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many...
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Registration for ‘R in Insurance’ conference has opened
The registration for the first conference on R in Insurance on Monday 15 July 2013 at Cass Business School in London has opened. The intended audience of the conference includes both academics and practitioners who are active or interested in the applications of R in insurance. The 2013 R in Insurance conference builds upon the success of the R i...
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First steps of using googleVis on shiny
The guys at RStudio have done a fantastic job with shiny. It is really easy to build web apps with R using shiny. With the help of Joe Cheng from RStudio we figured out a way to make googleVis work on shiny as well. This allows you to make use of the Google Charts Tools in your shiny app directly from R. What I present here are three ...
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Create an R package from a single R file with roxyPackage
Documenting code can be a bit of a pain. Yet, the older (and wiser?) I get, the more I realise how important it is. When I was younger I said 'documentation is for people without talent'. Well, I am clearly loosing my talent, as I sometimes struggle to understand what I programmed years ago. Thus, anything that soothes the pain of wri...
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How to use optim in R
A friend of mine asked me the other day how she could use the function optim in R to fit data. Of course there are functions for fitting data in R and I wrote about this earlier. However, she wanted to understand how to do this from scratch using optim. The function optim provides algorithms for general purpose optimisations and the ...
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googleVis 0.4.2 with support for shiny released on CRAN
The new version of googleVis 0.4.2 is now available via CRAN. Many thanks to all who provided feedback on version 0.4.0 and particularly to Sebastian Campbell, John Maindonald and Aonan Zhang. As usual, if you find any issues or bugs, please send us an email or add a line to our online issues log.With version 0.4.0 we introduced suppo...
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