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As everyone knows, it seems that Sony is taking a bit of a battering from hackers.  Thanks to Sony, numerous account and password details are now circulating on the internet. Recently, Troy Hunt carried out a brief analysis of the password structure. Here is a summary of his post: There ... [Read more...]

Graphs like Figure 1 are reasonably common.  But they are not reasonable. Figure 1: A (log) price series with an explicit guide line. Some have the prices on a logarithmic scale, which is an improvement on the raw prices. The problem with this sort of plot is that two particular data points ... [Read more...]

Yesterday, Andrew Thomas and José Blanchet posted a note on the Bernouilli factory on arXiv. This short paper links with the recent paper of Flegal and Herbei I commented earlier. Considering the special target Thomas and Blanchet develop an elaborate scheme of cascading envelopes that converge to f from above. ... [Read more...]

Thanks to everyone who attended our webinar The 'Big Analytics' Revolution Starts with R yesterday. If you missed the live session, you can download the presentation slides (PDF) and the 30-minute replay video (WMV) from the Revolution Analytics website. The presentation focuses on the isse of Big Data, and how ... [Read more...]

CIO Magazine today has an article on the "6 Hottest New Jobs in IT" in which features Data Science and R at #2: "There's now an intellectual consensus in business that the only way to run an enterprise is to use analytics with data scientists to find opportunities," says Norman Nie, CEO ... [Read more...]

As an appetizer for Paris triathlon, Jérôme and I ran as a team last week-end an adventure racing in Champagne region (it mainly consists in running, cycling, canoeing, with a flavor of orienteering, and Champagne is kept for the end). It was organized by Ecole Polytechnique students who, ... [Read more...]

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NERC recently funded the formation of the UK Lake Ecological Observation Network (UKLEON) as part of the its Networks of Sensors programme. UKLEON is lead by Ian Jones at CEH Lancaster. A fully-funded PhD project is associated with the UKLEON … Continue reading → [Read more...]

Some months ago, I posted a function that extended the base R function embed() to allow for time delay embedding. Today, David Gonzales alerted me to an inconsistency between embed() and Embed(). [Read more...]

Disease Ontology (DO) provides an open source ontology for the integration of biomedical data that is associated with human disease. DO analysis can lead to interesting discoveries that deserve further clinical investigation. DOSE was designed for semantic similarity measure and enrichment analysis. Read More: 619 Words Totally [Read more...]

I did the Two Castles Run today; it’s a 10km race between Warwick and Kenilworth castles. The organizers were very quick to put the results online and even went the extra mile of offering them as a CSV file. It … Continue reading → [Read more...]

Earlier, I looked at the HadCRUT3vgl data set using generalized least squares to investigate whether the trend in temperature since 1995 was statistically significant. Here I want to follow-up one of the points from the earlier posting; namely using a … Continue reading → [Read more...]

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Yesterday (June 11, 2011) the BBC reported on comments by Prof. Phil Jones, of the Climatic Research Unit (CRU), University of East Anglia (UEA), that the warming experienced by the planet since 1995 was statistically significant. That the trend in … Continue reading → [Read more...]

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[Warning: this post about a race I ran yesterday is unlikely to be of interest for most readers!] Following my (un)reasonable time last year, I registered again for the annual “Cross de Bercy”  run by the Sport Club of the Finance Ministry (with whom/which CREST is affiliated). This ... [Read more...]

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Overview: How to setup R on an EC2 instance of Ubuntu 11.04 (Natty Narwhal) How to setup Apache Tomcat 6.0 web server and configuring it with basic authentication so that we can view our output from R on a password … Continue reading → [Read more...]