Publications by Markus Gesmann
Sankey diagrams with googleVis
Sankey diagrams are great for visualising flows from one set of data values to another. Although named after Irish Captain Matthew Henry Phineas Riall Sankey, who used this type of diagram in 1898 to show the energy efficiency of a steam engine, the best know Sankey diagram is probably Charles Minard‘s Map of Napoleon’s Russian Campaign of 18...
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Calendar charts with googleVis
My little series of posts about the new googleVis charts continues with calendar charts. Google’s calendar charts are still in beta, but they provide already a nice heat map visualisation of calendar year data. The current development version of googleVis supports this new function via gvisCalendar. Here is an example displaying dai...
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Annotation charts and histograms with googleVis
After my posts on timeline, Sankey and calendar charts, this will be the last to introduce new chart types of the developer version of googleVis. Today I will give examples for the new annotation charts and histograms.Annotation chartsAnnotation charts have been part of the Google Chart tools for a long time and googleVis as well. How...
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googleVis 0.5.1 released on CRAN
GoogleVis 0.5.1 was released on CRAN yesterday. New Features New functions gvisSankey, gvisAnnotationChart, gvisHistogram, gvisCalendar and gvisTimeline to support the new Google charts of the same names (without ‘gvis’). New demo Trendlines showing how trend-lines can be added to Scatter-, Bar-, Column-, and Line Charts. New demo...
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Notes from the Tokyo R User Group meeting, 17 April 2014
Last Thursday I had the pleasure to attend the Tokyo R user group meeting. And what a fun meeting it was! Over 40 R users had come together in central Tokyo. Yohei Sato, who organises the meetings, allowed me to talk a little about the recent developments of the googleVis package.Thankfully all talks were given in English: Takashi J. ...
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R in Insurance 2014: Conference Programme & Abstracts
I am delighted to announce that the programme and abstracts for the second R in Insurance conference at Cass Business School in London, 14 July 2014, have been finalised. Register by the end of May to get the early bird booking fee.The organisers gratefully acknowledge the sponsorship of Mango Solutions, CYBAEA, RStudio and PwC withou...
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Customising lines and points with googleVis
At the end of March Google released a new version of the Chart Tools API with new options for point shapes and line brushes. The arguments are called pointShape and lineDashStyle and can be set directly via googleVis. We published googleVis 0.5.2 on CRAN yesterday with added examples for those new options in gvisLineChart and gvisScatt...
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The Wiener takes it all? A review of the 2014 Eurovision results
Saturday's Eurovision Song Contest (ESC) from Copenhagen was hilarious as usual with acts from all over Europe and some more or less sensible gimmicks: a circular piano, a giant hamster wheel, a sea-saw, or indeed a beard and fancy dress. The results of the ESC were only a little different to what the bookmakers in the UK had predicted before the...
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Next Kölner R User Meeting: Friday, 23 May 2014
The next Cologne R user group meeting is scheduled for this Friday, 23 May 2014. To celebrate our 10th meeting we welcome:Andrie de Vries (Revolution Analytics and Co-author of R for Dummies): Taking R to the Enterprise Markus Gesmann: googleVis overview and recent developmentsFollowed by drinks and schnitzel at the Lux.Further detail...
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Notes from the Kölner R meeting, 23 May 2014
The 10th Kölner R user meeting took place last Friday at the Institute of Sociology and to celebrate the anniversary we invited Andrie de Vries to join us from Revolution Analytics. Andrie is well known in the R community; he is the co-author of the R for Dummies book and an active contributor on stackoverflow. Taking R to the Enter...
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