While reading a paper on mutualistic networks in press at Ecology, by Jimena Dorado et al., I found the following sentence in the Materials & methods section: Correlation analyses were done using the cor.test function in the basepackage of R (…)Read the rest of this entry » [Read more...]

Recently there was a lot of racket about results presented in papers by a pair Nicholas Christakis & James Fowler. Their papers gained a lot of attention both in the academic world as well as in media. In their papers they claim to provide evidence for social contagion (transmission through social ... [Read more...]

Download "Getting Started with the Social Media Analytics Research Toolkit" (pdf, 1.25 megabytes) Download the Social Media Analytics Research Toolkit My Social Media Analytics Research Toolkit is about to move into private beta. What's in the release?... [Read more...]

Download "Getting Started with the Social Media Analytics Research Toolkit" (pdf, 1.25 megabytes) Download the Social Media Analytics Research Toolkit How The Chart Was Made Whenever a Twitter user posts a tweet, an object is created and entered into t... [Read more...]

This tutorial covers profiling of Linux servers using open-source tools such as "iostat", "oprofile" and "blktrace". Both processor-bound and I/O-bound cases are covered, and the emphasis is on tools that provide visual displays of relevant metrics. Li... [Read more...]

Download "Getting Started with the Social Media Analytics Research Toolkit" (pdf, 1.25 megabytes) Download the Social Media Analytics Research Toolkit Media Inactivist, Thought Follower, Sit-Down Comic, Social Media Analytics Researcher, Former Boy Gen... [Read more...]

Download Code Like A Pirate - The #rstats Appliance from the SUSE Gallery  The R programming language was featured about a year ago in a New York Times article (http://bit.ly/iaqQ). I've been an R user since 2000, so I've collected some resources ... [Read more...]

It’s been a long time since I posted here, for a number of reasons: Change of focus from Ruby programming to Linux capacity planning, especially in the realm of I/O subsystems. You’ll find more about that at http://linuxcapacityplanning.com... [Read more...]