Contact Information 312 Hamilton Hall, CB #3265
Chapel Hill, North Carolina 27599
919.600.9247
E-mail: jjharden[at]unc.edu

What is R? R is a statistical programming language and environment that is becoming popular in many disciplines. Some of the benefits of R include: the cost (free), flexibility to handle a wide variety of statistical technologies through user-generated packages, object-oriented programming, and improved graphics.

Getting started:

• The Comprehensive R Network (CRAN)
• An Introduction to R
• Quick-R (An introduction for STATA/SPSS/SAS users)
• Jamie Monogan's website
• R Seek (An R Search Engine)
• R by Example
• Graphics in R
• Tinn-R (A text editor designed for R)

Research computing with R at UNC
Anyone with an onyen at UNC can sign up to use several research computing clusters, maintained by ITS. Two that are particularly easy to use with R include Emerald and Cedar/Cypress. Emerald is a large cluster of multi-core CPU hosts. Users can invoke R interactively or submit script files in batches. Cedar/Cypress is comprised of a login node (Cedar) and a computing node (Cypress). Like Emerald, R can be invoked interactively or used with script files submitted as batches.

• Getting Started on Emerald
• Getting Started on Cedar/Cypress
• Accessing Emerald and Cedar/Cypress
• Submitting R scripts