Overview This year's R/Finance conference will be preceded by a full-day masterclass on Rcpp and related topics which will be held on Thursday, April 28, 2011, the Univ. of Illinois at Chicago campus. Join Dirk Eddelbuettel and Romain Fr...
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Rcpp workshop in Chicago on April 28th
Overview This year's R/Finance conference will be preceded by a full-day masterclass on Rcpp and related topics which will be held on Thursday, April 28, 2011, the Univ. of Illinois at Chicago campus. Join Dirk Eddelbuettel and Romain Fr...
solaR 0.22 is at CRAN
The version 0.22 of solaR is now available at CRAN. Besides, solaR is now registered at R-Forge. A new mergesolaR method has been defined for merging solaR objects. The calculation of the sunset time has been improved. The voltage dependency of the efficiency curve of the inverter is now included in fProd and calcGCPV. The 
The Register profiles Revolution Analytics
Tech news site The Register has just published an in-depth profile of Revolution Analytics. It was great meeting the author Dan Olds at Revolution HQ a couple of weeks ago, and sharing with him why we think the R language is the way forward for data science: modern, applied, large-scale statistical analysis. He captures that sentiment perfectly in the...
Looking at the "Curse of Dimensionality" with R, foreach, and lattice
Here are the results of a "Curse of Dimensionality" homework assignment for Terran Lane's Introduction to Machine Learning class. Pretty pictures, interesting results, and a good exercise in explicit parallelism with R.
It's neat to see distance scaling linearly with standard deviation, and linearly with the Lth-root...
$3.2M in prizes for predicting hospitalization
Heritage Health and Kaggle have teamed up to create the biggest data science competition thus far: the Heritage Health Prize, which challenges competitors to build a statistical model to predict the number of days a person is likely to spend in hospital over the next year, based on (anonymized) factors such as demographics, medical visits and treatments, and other...
In case you missed it: February Roundup
In case you missed them, here are some articles from February of particular interest to R users. Revolution R Enterprise 4.2 is now available to subscribers, and for free download to academics. A brief report from the Strata: Working with Data conference, and a comprehensive review from Ted Leung. A profile of prolific R contributor, Dirk Eddelbuettel. A list...
snow and ssh — secure inter-machine parallelism with R
I just threw a post up on Revolutions, which got a lot longer than I planned. And got me thinking. And reading (see refs in previous post). And trying. Turns out that it was way easier than I thought!
The problem:
From the blog post:"
OpenSSH is now available on all platforms. A sensible solution...
Utilizing multiple cores in R
There are a couple of options in R, if you want to utilize multiple cores on your machine. These days my favorite is doMC package, which depends on foreach and multicore packages.in the section below squareroot for each number is calculated in parallel...
Utilizing multiple cores in R
There are a couple of options in R, if you want to utilize multiple cores on your machine. These days my favorite is doMC package, which depends on foreach and multicore packages.in the section below squareroot for each number is calculated in parallel...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
