June 2010

New R User Group in Atlanta

June 11, 2010 | David Smith

There's a new R User Group in Atlanta, GA. Well, it's not exactly new -- they've already had their first meeting -- but due to a cock-up on my part I failed to announce it at the time. (Memo to self: don't forget to star emails in Gmail that you ... [Read more...]

The R Revolution on TV

June 11, 2010 | martin

I never thought I would ever embed videos from FOX on my blog, but this one needs to be covered: Watch the latest business video at video.foxbusiness.com Watch SPSS co-founder Norman Nie talking about the “… unbelievably powerful open source language called R …” and “… I am not sure that ... [Read more...]

The Deepwater Horizon, in context

June 11, 2010 | David Smith

The Earth is pretty big. Give or take, it's about 36,000 feet (11km) to the height of a 747 soaring above Everest, and (in pleasing symmetry) about the same distance down the bottom of the Mariana Trench. (Nonetheless, if you shrunk the Earth down to scale, it would still be smoother than ... [Read more...]

R on TV

June 10, 2010 | David Smith

Had a fun day today in a TV studio for Fox Business News, where Revolution CEO Norman Nie was giving an interview to Liz Claman at Fox Business Network. As you might expect, the interview focused a lot more on the business side than on technical capabilities of Revolution R, ... [Read more...]

Plotting BP Oil Spill Testing Data using R

June 10, 2010 | C

The Deepwater Horizon Incident is in the U.S. headlines and on many peoples minds. The folks over at Revolution Analytics were even discussing this subject today. Several government sites including the NOAA have sections dedicated to the problem. In...
[Read more...]

oro.nifti 0.1.5

June 10, 2010 | Brandon Whitcher

The latest version of oro.nifti (0.1.5) has been released on CRAN.  New features include:Reduced overall size of the package by 50%Minor improvements; for example, the XML package is no longer required as indicated from the DESCRIPTION file ... [Read more...]

oro.dicom 0.2.6

June 10, 2010 | Brandon Whitcher

The latest version of oro.dicom (0.2.6) has been released on CRAN. New features/improvements include:33% increase in the speed of DICOM file handlingAutomatic re-orientation/re-slicing of 3D and 4D volumes when converting from DICOM to NIfTI formatWo... [Read more...]

Rcpp 0.8.2

June 10, 2010 | Thinking inside the box

A bug fix release Rcpp version 0.8.2 is now on CRAN and Debian. It contains some fixes for Sun compiler, but no user-visible changes and complements the Rcpp 0.8.1 release made Tuesday. Our thanks to Brian Ripley for help with the portability tests ... [Read more...]

RcppArmadillo 0.2.2

June 9, 2010 | Thinking inside the box

Following the Rcpp 0.8.1 release we made yesterday, we released RcppArmadillo release 0.2.2 this morning. RcppArmadillo uses Rcpp (and some 'glue' code) to provide a transparent interface from R to Conrad Sanderson's impressive Armadillo library for... [Read more...]

Data Mining with WEKA example implemented in R

June 9, 2010 | C

IBM Developer Works has several new articles on Data Mining with WEKA by Michael Abernethy. I decided to implement the example provided in the first article in the series using R. I realize that I could have used WEKA through R (using the RWeka packa...
[Read more...]

3 lines of R code to Process a Web Service

June 9, 2010 | C

Ruby is well known for its terse syntax and ability to process web services. I prefer JSON (Javascript Object Notation) to XML whenever possible. For example, a script to retrieve a list of World Bank Data takes all of three lines of code (after in...
[Read more...]

Thoughts on Making Data Work

June 9, 2010 | David Smith

I really enjoyed all four talks at today's online conference, Making Data Work. (Disclosure: Revolution sponsored this conference.) I thought the four speakers together gave a great overview of issues related to the processing, analysis, and visualization of big data. Mike Driscoll started off with a useful categorization for data ... [Read more...]

Stratified sampling

June 9, 2010 | xi'an

The recently arXived paper of Goldstein, Rinott and Scarsini studies the impact of refining a partition on the precision of a stratified maximising/integration Monte Carlo approach. Quite naturally, if the partition gets improved, simulating points in each set of the partition can only improve the quality of the approximation, ... [Read more...]

Go Guerrill-R on Your Data in August

June 8, 2010 | Neil Gunther

Guerrill-R, get it? Register now for the Guerrilla Data Analysis Techniques (GDAT) class to be held during the week of August 9-13, 2010. The focus will be on using R and the PDQ-R for computer performance analysis and capacity planning.(Click on the...
[Read more...]

Plotting World Bank Data with R

June 8, 2010 | C

Copy and paste the code listed in this post below, and you can create a plot of World Bank data using R with a call like the following:plotWorldBank('USA','NY.GDP.MKTP.KD.ZG')There is a wealth of economic and demographic available at the World Bank. ...
[Read more...]

Rcpp 0.8.1

June 8, 2010 | Thinking inside the box

Early this morning I sent Rcpp version 0.8.1 off to CRAN and Debian. In the meantime, Romain has already provided a very nice blog post about it. There are a few fairly visible new things in this release. As we want to focus the next few minor rel... [Read more...]
1 4 5 6 7 8 9

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)