A common task in GIS analysis is to extract the value of a remotely sensed environmental variable at a point location. For instance we may wish to extract the elevation of a field plot from a digital elevation model. The elevation data is a raster (i.e. grid) and the plots are a point shapefile (or a simple text file of X,...
A common task in GIS analysis is to extract the value of a remotely sensed environmental variable at a point location. For instance we may wish to extract the elevation of a field plot from a digital elevation model. The elevation data is a raster (i.e. grid) and the plots are a point shapefile (or a simple text file of X,...
WHAT IF YOUR GPS TOLD YOU WHAT WOULD HAVE HAPPENED IF YOU HAD TAKEN THE OTHER ROUTE? Not long ago, your Decision Science News editor was planning a trip to a book group meeting along with another member. The monthly book group takes place in Cove Neck Long Island, about an hour East of Manhattan.
Some charts are to help you analyse data. Some charts are to wow people. 3d charts are often the latter, but occasionally the former. In this post, we’ll look at how to turn your data into a 3d chart. Let’s use the data from this previous post. Use the code which turns the .csv spreadsheet 
Here's a quick R plot of population in Indian states and the breakdown by the religion people practice. The data was obtained from this Indian government site. I'm looking for other state-level data to overlay on this to find interesting patterns e.g....
R O How G8 U R!Hey, R U there? Having used the R language for awhile now, I would like to let you know that R works - in fact R works really well. If you keep up with R news this should be no surprise...this is, after all...an r blog! R and R alone c...
TDWI (The Data Warehousing Institute) recently published a comprehensive article about R and increasing level of activity around it from commercial organizations, including Revolution Analytics. The article opens with: In statistical circles, "R" is the name of an open source programming language for statistical analysis. These days, it might also be shorthand for "rock star." Many of the companies...
The R User Conference 2010 is scheduled for July 20-23, 2010. Wanna know where?Although there are more sophisticated methods of mapping with R the maps package makes mapping activities straightforward. A bit of XML and Google...
![A quantum leap (CoRe in CiRM [4])](http://www.r-bloggers.com/wp-content/uploads/2010/07/scotlip-e1278943739332.jpg?w=360&h=346)
Today, as I was trying to install SpatialEpi to use the Scotland lip cancer data in the last chapter of Bayesian Core, I realised my version of R, R Version 2.6.1, was hopelessly out of date! As I am also using Hardy Heron, a somehow antiquated version of Ubuntu on my Mac, upgrading R took 
Dear list, I brought up this issue before but a good solution never arised: being able to use screen on a remote server (so if something goes wrong on my side I can always resume that R session) inside of emacs in order to utilize ESS. The closest thing I found to a good work
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
