May 2012

Better R support in pygments by monkey patching SLexer

May 20, 2012 | f3lix

I started using knitr with reStructuredText today and I found that the syntax highlighting with pygments (used by rst2html.py) was not as nice as the output of pandoc. So I ended up doing some monkeypatching. Try adding the following to rst2html.py: Before: After: Note: I assume ...
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Another cut at market randomness

May 20, 2012 | Pete

I have some background in computer security and one day found myself tasked with assessing the quality of randomness for session id tokens generated by popular web frameworks (namely Java and .NET). As it turns out, NIST have developed a series of tests for just this purpose detailed here.As ... [Read more...]

My two favorite IDE’s for R – tips & tricks

May 20, 2012 | Max Gordon

The two IDE that I use for R are RStudio and Eclipse with StatET. They complement each other nicely, RStudio works out of the box while I previously shown how to get Eclipse & StatET going, you can find it here, which is slightly challanging. RStudio I use RStudio for all ... [Read more...]

Births and week-ends, in France

May 19, 2012 | arthur charpentier

This week, I have seen on the internet (sorry, I cannot find proper references) the graph produced here on the right: which birthday is most likely ? The fact that I have no further information is important, since I do not know in which country suc... [Read more...]

Interestingness comparisons

May 19, 2012 | Ron Pearson (aka TheNoodleDoodler)

In three previous posts (April 3, 2011,  April 12, 2011,and May 21, 2011), I have discussed interestingness measures, which characterize the distributional heterogeneity of categorical variables.  Four specific measures are discussed in Chapter 3 of Exploring Data in Engineering, the Sciences and Medicine: the Bray measure, the Gini measure, the Shannon measure, and the Simpson measure.  ... [Read more...]

Map of divorce in Mexico

May 19, 2012 | Diego Valle-Jones

Keeping with this week's divorce theme, here's a map of the Mexican states where marriages are most likely to end in divorce. Perhaps not surprisingly, there seems to be an inverse correlation with the state percentage of the population that is catho... [Read more...]

RcmdrPlugin.KMggplot2_0.1-0 is on CRAN now

May 18, 2012 | triadsou

I posted a new version of the "RcmdrPlugin.KMggplot2" package, which is an Rcmdr plug-in for a "ggplot2" GUI front-end. This package assists you to make "ggplot2" graphics. RcmdrPlugin.KMggplot2 (CRAN) NEWS Changes in version 0.1-0 (2012-05-18) Restructuring implementation approach for efficient mai… [Read more...]

My experiences with Rcpp

May 18, 2012 | mathiasbader

The last seven days till Tuesday I have been working on the conversion of the code of my master thesis from scripted R (statistics) to compiled C++ using the Rcpp package from Dirk Eddelbuettel. Despite the initial effort necessary to … Continue reading → [Read more...]

R is to SAS as Java is to COBOL

May 18, 2012 | David Smith

An interview with Revolution Analytics CEO Dave Rich was published this week by BeyeNetwork. During the interview, Dace was asked about how the statistical modeling platforms have changed over the decades: People have been doing statistical modeling and predictive analytics for 50 years now, SAS and SPSS have been around since ... [Read more...]

Should I be nice?

May 18, 2012 | Karl Broman

I got the following email. Subject: i have a question? Date: May 18, 2012 7:57:56 AM CDT how can i enter the data of QTL analysis. That was the whole thing. I presume that the writer wishes to use my R/qtl software. I could probably respond helpfully (for example, “See the sample ... [Read more...]

A minimal network example in R

May 18, 2012 | sieste

Network science is potentially useful for certain problems in data analysis, and I know close to nothing about it. In this short post I present my first attempt at network analysis: A minimal example to construct and visualize an artificial undirected network with community structure in R. No network libraries ... [Read more...]

Bar Graph Colours That Work Well

May 17, 2012 | inkhorn82

Ever since I started using ggplot2 more often at work in order to do graphs, I’ve realized something about the use of colour in bar graphs vs. dot plots: When I’m looking at a graph displayed on the brilliant Viewsonic … Continue reading → [Read more...]
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