Posts Tagged ‘ News ’

Halloween 2016 count

November 1, 2016
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Halloween 2016 count

Here’s a graph of the numbers of trick-or-treat-ers we saw this evening, by time. 10 of the 25 kids arrived in one big group. (Compare this to our 2011 experience.)

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Next Kölner R User Meeting: Friday 14 October

October 11, 2016
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Next Kölner R User Meeting: Friday 14 October

The 19th Cologne R user group meeting is scheduled for this Friday, 14 October 2016. We have three talks, followed by networking drinks. Introduction to the tidyverse tools - Jiddu AlexanderPerformance profiling and improvement in R - Nils GlückBatch ...

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googleVis 0.6.1 on CRAN

September 6, 2016
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googleVis 0.6.1 on CRAN

We released googleVis version 0.6.1 on CRAN last week. The update fixes issues with setting certain options, following the switch from RJSONIO to jsonlite. Screen shot of some of the Google ChartsNew to googleVis? The package provides an interface betw...

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Two figures on the accuracy of polygraphs as lie detectors.

September 2, 2016
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Two figures on the accuracy of polygraphs as lie detectors.

Here's a pair of figures from a 2003 report by the National Academies 'Committee to Review the Scientific Evidence on the Polygraph' (full text), which includes several well-known statisticians. The figure below shows the sensitivity versus false-positive rate for 52 controlled laboratory studies of naive examinees, untrained in polygraph countermeasures. Each study examinee was assigned … Continue reading Two figures on the accuracy of polygraphs as lie detectors. →

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Notes from the Kölner R meeting, 9 July 2016

July 13, 2016
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Notes from the Kölner R meeting, 9 July 2016

Last Thursday the Cologne R user group came together again. This time, our two speakers arrived from Bavaria, to talk about Spark and R Server.Introduction to Apache SparkDownload slidesDubravko Dulic gave an introduction to Apache Spark and why Spark ...

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Sharp-R May Update

May 16, 2016
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Another update has been made to Sharp-R bringing it to version 1.2. The main changes are, Multiple function files. Built in standard functions. Changes to the XML function files. Bug fixes. We have increased the number of function files that can loaded...

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Notes from 2nd Bayesian Mixer Meetup

April 19, 2016
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Notes from 2nd Bayesian Mixer Meetup

Last Friday the 2nd Bayesian Mixer Meetup (@BayesianMixer) took place at Cass Business School, thanks to Pietro Millossovich and Andreas Tsanakas, who helped to organise the event.Bayesian Mixer at CassFirst up was Davide De March talking about the cha...

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Sharp-R Update

April 11, 2016
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Sharp-R, our Excel R interface has just been updated to version 1.1 to address some of the minor issues that didn’t get dealt with before the first release. Improved the quality of the R plots being returned to Excel. The previous version was cop...

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Next Kölner R User Meeting: Friday, 26 Feburary 2016

February 23, 2016
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Next Kölner R User Meeting: Friday, 26 Feburary 2016

The 17th Cologne R user group meeting is scheduled for this Friday, 26 February 2016. We have two talks, followed by networking drinks. Introduction to Bayesian Regression Models using Stan with the brms package - Paul-Christian Bürkner (Uni Münster)...

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Bayesian Mixer on Meetup

February 16, 2016
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Bayesian Mixer on Meetup

We had our first successful Bayesian Mixer Meetup last Friday night at the Artillery Arms!We expected about 15 - 20 people to turn up, when we booked the function room overlooking Bunhill Cemetery and Bayes' grave. Now, looking at the photos taken duri...

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