There's a new CRAN mirror available: cran.revolutionanalytics.com. It's provided by Revolution Analytics and hosted at Rackspace's high-availability data center in Dallas, TX. Especially for R users located in the western US, using this mirror will provide high-bandwidth access to open-source R downloads and CRAN packages while taking the load off of the main cran.r-project.org server. The mirror is updated...
Monthly Archives: December 2011
A Word Cloud with Spatial Meaning
..Some time ago I did a word cloud for representing a Google Scholar search result. Tal Galili pointed me at a post by Drew Conway that expanded on the topic of word clouds lacking spatial meaning. In fact the spatial ordering of words in a word cloud ...
UseR! 2011 slides are now available
I have just realized that UseR! 2011 presentation slides are now available from the conference web site.
Unfortunately, no big surprise this year. Or maybe this is good news as it means that I have all the important stuff in my RSS Reader. And by the way, this blog is now listed on www.r-bloggers.com.
To be fair there was...
Principal Components Analysis with "R" (Part: 001)
This is the first "post" of my new adventure with a software that I consider very interesting and that give to people the oportunity to work with Chemometrics ("R" is free).To follow these examples, yo can download the following article:"Multivariate S...
R is not C
I keep trying to write R code like it was C code. It is a habit I’m trying to break myself of. For example, the other day I need to construct a model matrix of 1′s and 0′s in the … Continue reading →
Call for Proposals for The R Series from Chapman & Hall/CRC
(This is a guest post based on Calver, Rob e-mail to the R-help mailing list) We are delighted to announce that our new series of books on R is up and running, with two books already published and another nine forthcoming (including three set to publish in 2012). We are keen to receive proposals for books covering all aspects of...
Improved Moving Average Code is available for download!
Quantitative Finance, Technical Trading & Analysis. Fotis Papailias, Dimitrios Thomakos Fotis Quantitative Finance & Technical Trading Improved Moving Average Code is available for download!
Hi everyone, in the last few days we have received great feedback from you. Due to increasing demand we have made a short version of the original code available for personal use. Please let us...
World Since June 2008
For a client meeting, I struggled with how best to illustrate world markets since June 2008. I used R to produce this, but I’m still not completely satisfied. Anyone have suggestions to improve? From TimelyPortfolio What I thought was inte...
Using R — Basic error Handing with tryCatch()
The R language definition section on Exception Handling describes a very few basics about exceptions in R but is of little use to anyone trying to write robust code that can recover gracefully in the face of errors. In fact, … read mo...
My oh my
Noted without comment, visit Biostatistics Ryan Gosling !!! for more gems like the one above.
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
