About Quick-R

correlogramR is an elegant and comprehensive statistical and graphical programming language. Unfortunately, it can also have a steep learning curve. I created this website for experienced users of popular statistical packages such as SAS, SPSS, Stata, and Systat (although current R users should also find it useful). My goal is to help you quickly access this language in your work.

I assume that you are already familiar with the statistical methods covered and instead provide you with a roadmap and the code necessary to get started quickly, and orient yourself for future learning. I designed this web site to be an easily accessible reference. Look at the sitemap to get an overview.

Why Use R?

If you currently use a statistical package such as SAS, SPSS, Stata, or Systat why learn R?

  1. It's free! If you are a teacher or a student, the benefits are obvious.
  2. It runs on a variety of platforms including Windows, Unix and MacOS.
  3. It provides an unparalleled platform for programming new statistical methods in an easy and straightforward manner.
  4. It contains advanced statistical routines not yet available in other packages.
  5. It has state-of-the-art graphics capabilities.

Obtaining R

R is available for Linux, MacOS X, and Windows (95 or later) platforms. Software can be downloaded from one of the Comprehensive R Archive Network (CRAN) mirror sites.

Quick-R as a book

R in Action

Over the past two years, I have received numerous requests for a hardcopy version of this site. For the past few months, I have been writing a book that takes the material here and significantly expands it. It is due out in April. If you are interested, early access is available.

Of course, I will continue to maintain this site!