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Monthly Archives: October 2009
Running JAGS via R2jags
I finally figure out how to run WinBUGS examples in JAGS via R2jags. JAGS is preferred over WinBUGS for its cross-platform compatibility and performance (it was written in C++).
Some Interesting Packages in R: swfDevice, RGoogleTrends, FlashMXML, SVGAnnotation
I love R because there are always exciting new packages which can be far beyond your imagination. Here I’d like to introduce a couple of packages that look really awesome: 1. swfDevice: R graphics device for SWF output (by Cameron Bracken) This package is still at a pre-alpha stage but you can see a sketch now in
RPostgreSQL 0.1-6
A quick bug fix released of RPostgreSQL was uploaded to CRAN earlier today; it updates last week's 0.1-5 release. An editing error left one of the helper functions broken. I also updated a few of the test scripts to also allow for optional environment ...
RPostgreSQL 0.1-6
A quick bug fix released of RPostgreSQL was uploaded to CRAN earlier today; it updates last week's 0.1-5 release. An editing error left one of the helper functions broken. I also updated a few of the test scripts to also allow for optional environment variable for the port at which the PostgreSQL server is listening. This is handy when you have parallel installations...
Comments on the "R Clinic"
Theresa Scott runs an R Clinic at Vanderbilt. Researchers bring their questions along to weekly sessions and some answers are posted on this website. It's great to see the combination of statistical consulting services and public posting of answe...
Xasax closes shop
Six months after shutting down opentick completely Xasax (opentick's parent company) has followed suit.It looks like Xasax hit funding problems in August... Inside Market Data mentions the above in this story. Here is the full story (subscription requ...
GenEstim : A simple genetic algorithm for parameters estimation
The GenEstim function presented here uses a very simple genetic algorithm to estimate parameters. The function returns the best estimated set of parameters ($estim), the AIC ($information) at each generation, and the cost of the best model ($bestcost) at each generation. Results of running the program with a logistic function : Logis = function(x,p) p]/(1+p]*exp(-p]*x)) 
Dianne Reeves: Strings Attached at the CSO
Another trio concert at CSO, but very different from the most recent classic piano trio. Tonight was once again a chance to see Dianne Reeves (wikipedia) but this time accompanied simply by two guitarists: Russell Malone and Romero Lubambo (wikipedia).
Given that Dianne Reeves (who we had seen in just a few month earlier in our neighbourgood) has plenty of stage...
Software for Surviving Graduate School Part 1
After introducing a colleague to the wonders of Dropbox today (more on that later) I realized that it might be useful to put out a list of software that is of use to graduate students. I often find that many of the software products I find indispensable are virtually unknown to many of my fellow graduate students. Certainly this...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
