Hi everybody,Few days back I was going through the development of immunoglobulin receptors on B cells. I came across a few facts:1. The ratio between kappa (K) and lambda (L) light chain attached with immunoglobulin (Ig) receptor is approxi...

Specifics of statistical factor models and of a particular implementation of them. Previously Posts that are background for this one include: Three things factor models do Factor models of variance in finance The BurStFin R package The quality of variance matrix estimation The problem Someone asked me some questions about the statistical factor model in … Continue reading...

To follow my Introducing R and Biostatistics to first year LCG students (2012 version) post, you can now find the presentation online from my site either in presentation format, in a single webpage format, or the raw Rmd file. To prove the point that publishing to RPubs is super easy, you can also find the single...

PDQ (Pretty Damn Quick) version 6.0.β is in the QA pipeline. Although this is a major release, cosmetically, things won't look any different when it comes to writing PDQ models. All the big changes have taken place under the hood in order to make PDQ more consistent with the R statistical environment. R version 2.15.2...

A couple of weeks ago, Markus Gesmann demonstrated the feasability of connecting R and Arduino using Processing and Rserve in a nice and simple example. This actually rekindled my interest in Arduino that I hadn’t had time to satisfy… Again I will show a very easy and simple example, but this time, transferring the data between Arduino and R...

HT: Revolution Analytics Very good discussion about real applied econometrics and analytics including the use of ARIMA models, decision trees, and genetic algorithms. He also has a very smart approach in his attitude toward big data and data s...

In my last post about how a twitter conversation unfolds in time on Twitter, the dynamical nature of information diffusion in twitter was illustrated with a video of the temporal network of interactions (RTs) between accounts. The temporal evolution of … Continue reading → Related posts: Temporal network of information diffusion...

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