Scripting Guide • Extending JMP • Working with R • Installing R
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Installing R
Install R on the same computer as JMP. You can download R from the Comprehensive R Archive Network website:
http://cran.r-project.org
Because JMP is supported as both a 32-bit and a 64-bit Windows application, you must install the corresponding 32-bit or 64-bit version of R. For the supported version of R, see the system requirements on the JMP website: http://www.jmp.com/support/system_requirements_jmp.shtml
Override Default R Install Location
Normally JMP determines R_HOME internally if it is not defined in the Windows system registry:
64-bit R Install
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\R-code\R\InstallPath
32-bit R Install
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\R-code\R\InstallPath
To override the default R installation location, define the R_HOME environment variable using either of the two following methods:
1.
Create the variable in your system environment variables using the Control Panel, select Start > Control Panel > System > Advanced system settings.
2.
Click Environment Variables.
3.
In the System variables pane, click New.
4.
Type R_HOME for the Variable name.
5.
Type the path to the R .exe file (for example, C:\Program Files\R\R-2.15.3).
6.
Click OK and click OK again to close the System Properties window.
or
Create the variable using the JSL Set Environment Variable() function:
Set Environment Variable( "R_HOME", "C:\Program Files\R\R-2.15.3" );
How JMP Finds R
JMP delays loading R until a JSL-based script requires access to it. When JMP needs to load R, it follows the standard steps for finding R on a Windows computer:
1.
Look up the environment variable R_HOME.
If the variable exists, load R from the specified directory.
2.
If the environment variable R_HOME does not exist, look up the InstallPath value in the Windows registry under the following key:
 
HKEY_LOCAL_MACHINE\SOFTWARE\R-core\R
For 32-bit JMP running on a 64-bit machine, the InstallPath value is under the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432NODE\R-core\R
If the InstallPath value exists, load R from the specified directory.
3.
If the InstallPath value does not exist, an error message states that R could not be found.
Testing Your Setup
To test that your computer is able to run JSL-based scripts that use R, run the following JSL script:
R Init( );
R Submit( "
	x <- 1:5
	x
" );
R Term( );
You should see the following output in the log:
[1] 1 2 3 4 5