**T**his
month we provide a pre-installed, pre-configured version of R for
the Windows platform in a compressed, self-extracting zip file.
The following is an excerpt from the R website
http://www.r-project.org:

*R is a language and environment for
statistical computing and graphics. It is a
GNU project which
is similar to the S language and environment which was developed
at Bell Laboratories (formerly AT&T, now Lucent Technologies) by
John Chambers and colleagues. R can be considered as a different
implementation of S. There are some important differences, but
much code written for S runs unaltered under R. R provides a
wide variety of statistical (linear and nonlinear modeling,
classical statistical tests, time-series analysis,
classification, clustering, ...) and graphical techniques, and
is highly extensible. The S language is often the vehicle of
choice for research in statistical methodology, and R provides
an Open Source route to participation in that activity. One of
R's strengths is the ease with which well-designed
publication-quality plots can be produced, including
mathematical symbols and formulae where needed. Great care has
been taken over the defaults for the minor design choices in
graphics, but the user retains full control. R is available as
Free Software under the terms of the
Free Software
Foundation's GNU
General Public License in source code form. It compiles and
runs out of the box on a wide variety of UNIX platforms and
similar systems (including FreeBSD and Linux). It also compiles
and runs on Windows 9x/NT/2000 and MacOS *(from *
Introduction*)*.*

**R Installation for Windows Platform**

R can be be downloaded and installed from the
CRAN website. However, some effort is needed to choose which
packages to install; there are helper packages that provide GUI
support; and there are some configuration steps that make using R
more convenient. Rather than illustrate the installation
procedure of downloading and installing packages and configuring
the Rprofile and Rconsole files, we have provided a
preinstalled/preconfigured image of R in a self-extracting ZIP
file. You can download this file from the RSS server at the
following location:
http://www.unt.edu/rss/R_cd/R.exe . This file is
approximately 700 megabytes, so you might want to have a DSL or
Cable internet connection. If you don't have an internet
connection with a large bandwidth, then you can pick up a CD free
of charge at the UNT bookstore (tradebooks - where UNT software is
sold).

**The R.exe File **

The R.exe file is a single file that installs a preconfigured
version of R (2.1.1) onto your C: hard-drive in the directory
"C:\R". This installation of R includes all of the packages on
the CRAN website as of Sept. 2005. Additionally, the "Tinn-R"
text editor and
"R
Commander" GUI are installed and R is preconfigured to start
these whenever R is started. To start R, browse to the C:\R
directory and click the shortcut icon which appears as a "blue R".
Additionally, some other open source statistical software are
installed and preconfigured in the R directory as well (e.g. Mx,
LEM). In subsequent RSS Matters articles, I will introduce
readers to these other open source statistical tools. In the near
future, we will have a CD of training AVI training videos that
instruct users on using R and other open source statistical
software. As an example, a link is provided below that has an
AVI video instructing users how to install the R CD.

An AVI media
file that introduces users to the installation of R for Windows.