Blog Archives

Annotation charts and histograms with googleVis

April 8, 2014
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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...

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Calendar charts with googleVis

April 1, 2014
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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 google...

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Sankey diagrams with googleVis

March 25, 2014
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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...

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Reminder: Abstract submission for the 2014 ‘R in Insurance’ conference will close this Friday

March 24, 2014
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Reminder: Abstract submission for the 2014 ‘R in Insurance’ conference will close this Friday

Don't forget, this is the final week you can submit an abstract for the second R in Insurance conference. For more details see http://www.rininsurance.com and perhaps for inspiration review last year's programme.

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Timeline charts with googleVis

March 18, 2014
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Last year at the Google I/O conference Mitchell Foley presented new developments of the Google Chart Tools API and one of the new features he mentioned were timeline charts (about 6 min into the talk). Timeline charts are a great way of visualising different dates/events over time and are now also supported by googleVis...

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googleVis code development moved to GitHub

March 11, 2014
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googleVis code development moved to GitHub

After nearly 4 years of developing googleVis on Google Code with SVN we decided to move to GitHub. The main reason was that Google stopped the facility of hosting pre-CRAN builds of the package for user testing. The devtools package on the other hand m...

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Review: Kölner R Meeting 26 Feburary 2014

March 4, 2014
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Review: Kölner R Meeting 26 Feburary 2014

Last week's Cologne R user group meeting was all about R and databases. We had three talks from a generic overview on how to connect R to databases, to a specific example with kdb+ and perhaps the future with ArangoDB, a NoSQL database.Connecting R with databasesDiego de Castillo's talk focused on the use of relational databases, such...

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Next Kölner R User Meeting: 26 February 2014

February 25, 2014
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Next Kölner R User Meeting: 26 February 2014

The next Cologne R user group meeting is scheduled for tomorrow, 26 February 2014. We are delighted to welcome: Diego de Castillo: R and databases Kim Kuen Tang: Hands on using R and kdb+ together Frank Celler: ArangoDB (Lightning Talk) Further details and the agenda are available on our KölnRUG Meetup site. Please sign up if you would like to come...

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R in Insurance 2014 Conference Poster

February 20, 2014
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R in Insurance 2014 Conference Poster

Here is the poster for the 2nd R in Insurance conference on Monday 14 July 2014 at Cass Business School in London:R in Insurance 2014 conference poster. Download PDF versionImportant dead lines to keep in mind:Abstract submissions: 28 March 2014Early b...

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Adding labels within lattice panels by group

February 18, 2014
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Adding labels within lattice panels by group

The other day I had data that showed the development of many products over time. I grouped the products into categories and visualised the data as line graphs in lattice. But instead of adding an extensive legend to the plot I wanted to add labels to each line's latest point. How do you do that? It turns out that...

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