Several of you will probably have tried out the new Shiny package brought to the table by the RStudio guys This is just what I have been looking for and to my mind could provide a quantum leap in the use of R. There have been other packages addressing the need for web user interactivity
In a recent post by Revolution Analytics (link & link) in which Revolution was benchmarking their closed source generalized linear model approach with SAS, Hadoop and open source R, they seemed to be pointing out that there is no 'easy' R open source solution which exists for building a poisson regression model on large datasets.
Earlier this month a new version of the Rcpp package by Dirk Eddelbuettel and Romain François was released to CRAN and today we’re excited to announce a new version of RStudio that integrates tightly with Rcpp. First though more about some exciting new features in Rcpp 0.10.1. This release includes Rcpp attributes, which are simple annotations that you add 
Yesterday, Christopher asked me how to store an R object, in order to save some time, when working on the project. First, download the csv file for searches related to some keyword, via http://www.google.com/trends/, for instance “sunglasses“. Recall that csv files store tabular data (numbers and text) in plain-text form, with comma-separated values (where csv term comes from). Even...
I recently released the new lambda.r package on CRAN for functional programming. This was my first new package in quite some …
Hadley Wickham has written a comprehensive tutorial for the Rcpp package, which makes it easy to create C++ code embedded in R programs. Hadley explains why you might want to do this in the introduction: Sometimes R code just isn't fast enough - you've used profiling to find the bottleneck, but there's simply no way to make the code...
NJ Hurricane Sandy Landfall Data These data come from the National Climatic Data Center (NCDC). Using the above link will download all of the data collected by the NCDC on the day of Hurricane Sandy. The data can also be obtained directly from the source at http://cdo.ncdc.noaa.gov/qclcd/QCLCD. The purpose of this post is not a discussion
R Code# This post builds on my recent post that builds a simulation of a computer adaptive test (CAT) selecting items from an infinite item pool using fisher information as the criteria.http://www.econometricsbysimulation.com/2012/11/computer-adaptive-...
There's not a lot you can do to increase your odds of winning the lottery tonight. With the PowerBall at $500 million though, a lot of otherwise rational folks might be tempted into playing. For those of you newly tempted, it is important to remember a...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
