JGR for Windows and Mac OS X consists of two parts: JGR R package which is available from CRAN and JGR launcher. The latter is a small program that starts JGR from its R package. It can be also used to install all necessary packages.

Consider updating JGR from CRAN (e.g. via update.packages()) periodically to have the latest bugfixes etc.

Mac OS X 10.4.+ download:
   - universal binary for R 2.5.0 or higher : JGR-1.5.dmg (ca. 110kB, updated 2007/08/23)

Mac OS X 10.3 users: you can still use the above binary, but please install all necessary packages manually before you start JGR:
install.packages(c("rJava","JavaGD","iplots","JGR"),type="source")

Windows 9x/.../XP download:
   - binary for R 2.5.0 or higher: JGR-15.exe (ca. 25kB, updated 2007/08/20)

Linux download:
If you are using one of the most popular Linux distributions, read our Linux tips page. First, make sure you have R shared library (libR.so, i.e. R was compiled with --enable-R-shlib). Then simply run in R (possibly as root for system-wide installation):

install.packages("JGR",dep=TRUE)
library(JGR)
JGR()

Note: If you encounter a problem when loading rJava on a unix platform, please make sure that your Java is set up properly and R is configured with Java support - in R 2.4.0 or higher simply run the following as root:
R CMD javareconf

Required Java version: Windows and Mac OS X: JDK 1.4 or higher, Linux/Solaris: JDK 1.5 or higher (JDK 5.0 in Sun's notation), 64-bit Linux: JDK 1.6 beta or higher (JDK 6.0 beta 2 in Sun's notation). Other Java distributions (IBM, Blackdown, GIJ, ..) are supported as long as they are compatible.

JGR comes without any warranty, and you use it at your own risk. JGR consists of several independent parts, most of which are licensed under GPL. For JGR modules and 3rd party add-ons, see the corresponding sources for licensing terms. Please contact us if you need different license type for your kind of application.

Please report bugs at: bugs.rforge.net
For general discussion use stats-rosuda-devel mailing list.

most FAQ:
Q: Can I execute commands directly from the editor?
A: Yes, direct command transfer from JGR editor is <Cmd>+<Enter> on Mac and <Ctrl>+<Enter> on Windows/X11 and applies to the selected text (works in the help, too).

1. Download and install R 2.5.0 or higher (Linux/Solaris: make sure --enable-R-shlib was used when compiling R)
2. Download the appropriate JGR application for your OS from above (Windows/Mac OS X) or install JGR package from CRAN.
3. Start the JGR application! JGR will install all necessary packages directly from CRAN (or the RoSuDa server).
   (You should have administrator rights to get the packages installed)
4. After step 3 completed successfully, JGR is fully installed and can be used.