[R] Colour-coded Editor for R Code

[Richard M. Heiberger]

Emacs and ESS for both Unix and Windows.

emacs for Windows from
ftp://ftp.gnu.org/pub/gnu/emacs/windows/emacs-21.3-fullbin-i386.tar.gz

emacs for Unix from
ftp://ftp.gnu.org/pub/gnu/emacs/emacs-21.4a.tar.gz


ESS from
http://ess.r-project.org/
Click on Source for the package itself.
Other items on the page give documentation.