Blog Archives

Next Kölner R User Meeting: 6 July 2012

May 1, 2012
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Next Kölner R User Meeting: 6 July 2012

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 fr...

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Installing R packages without admin rights on MS Windows

April 26, 2012
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Installing R packages without admin rights on MS Windows

Is there a life outside the office?Photo: Markus GesmannIt is not unusual that you will not have admin rights in an IT controlled office environment. But then again the limitations set by the IT department can spark of some creativity. And I have to ad...

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From the Guardian’s data blog: Visualising risk

April 20, 2012
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From the Guardian’s data blog: Visualising risk

The Guardian published a nice summary and link collection of an interdisciplinary visualisation workshop hosted by Microsoft dedicated to visualising probability and risk. Check it out here.OECD better life indexThe links I found most interesting were ...

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Sweeping through data in R

April 14, 2012
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Sweeping through data in R

How do you apply one particular row of your data to all other rows?Today I came across a data set which showed the revenue split by product and location. The data was formated to show only the split by product for each location and the overall split by...

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Review: Kölner R Meeting 30 March 2012

April 4, 2012
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Review: Kölner R Meeting 30 March 2012

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, wit...

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Reminder: Kölner R User Group meets on 30 March 2012

March 26, 2012
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Reminder: Kölner R User Group meets on 30 March 2012

Venue: Sion em Keldenich, Weyertal 47, 50937 Cologne, Germany, 6 p.m., 30 March 2012, View Larger MapFor more details and registration see the Kölner R User Group page.

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Copy and paste small data sets into R

March 21, 2012
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Copy and paste small data sets into R

How can I embed a small data set into my R code? That was the question I came across today, when I prepared my talk about Dynamical Systems in R with simecol for the forthcoming Cologne R user group meeting. I wanted to add all the R code of the talk t...

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Logistic map: Feigenbaum diagram

March 17, 2012
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Logistic map: Feigenbaum diagram

The other day I found some old basic code I had written about 15 years ago on a Mac Classic II to plot the Feigenbaum diagram for the logistic map. I remember, it took the little computer the whole night to produce the chart.With today's computers even...

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Change in life expectancy animated with geo charts

March 12, 2012
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Change in life expectancy animated with geo charts

The data of the World Bank is absolutely amazing. I had said this before, but their updated iPhone App gives me a reason to return to this topic. Version 3 of the DataFinder App allows you to visualise the data on your phone, including motion maps, see...

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German train monitor provides access to train delay data

March 10, 2012
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German train monitor provides access to train delay data

The German newspaper Süddeutsche Zeitung (SZ) worked together with OpenDataCity to create an online train monitor of the German network: Zugmonitor. This is another great example of the new form of data journalism.The project provides access to data o...

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