Last week I used grImport for the first time. I decided to try perform another exercise using it. The task was to add voivodeship division of Poland.Standard R maps do not contain such a division. I have found it on r-forge in package m...

"The R-Files" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community. Name: Martyn Plummer Occupation: Statistician at International Agency for Research on Cancer Nationality: British Years Using R: 16 Known for: Member of R core group; member of R Journal editorial board Martyn Plummer is a longtime contributor to the R community...

"The R-Files" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community. Name: Jeroen Ooms Background: Ph.D. Candidate, Statistics, UCLA Nationality: Netherlands Years Using R: 3 1/2 Known for: Developing web applications for popular R packages including ggplot2, lme4, stockplot and irttool Jeroen Ooms is a statistical consultant and R enthusiast currently pursuing...

"The R-Files" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community. Name: Martin Morgan Profession: Senior Staff Scientist at Fred Hutchinson Cancer Research Center Nationality: Canadian Years Using R: 7 Known for: Director of the Bioconductor project Martin Morgan is a Senior Staff Scientist at the Fred Hutchinson Cancer Research Center (FHCRC)...

"The R-Files" is an occasional series from Revolution Analytics, where we profile prominent members of the R Community. Name: Saptarshi Guha Background: Ph.D. in Statistics, Purdue University Nationality: India Years Using R: 6 Known for: Developing RHIPE package for R + Hadoop integration At just 31 years old, Saptarshi Guha has emerged as a cutting-edge contributor to the R...

In a post earlier this month, it seemed as though compressing a data file before reading it into R could save you some time. With some feedback from readers and further experimentation, we might need to revisit that conclusion To recap, in our previous experiment it took 170 seconds to read a 182Mb text file into R. But if...

Over the next few posts, I’m going to be reviewing the use of R to implement the most commonly used matrix techniques for image manipulation. The code will be surprisingly simple to understand, because the real magic behind these techniques lies in the mathematics that R provides an abstract interface to. To start, I’m going