R Installation

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R is a free software environment for statistical computing and graphics, and it is compatible with Jedox software. The R installation process allows you to perform R integration on Windows and Linux systems. The most recent tested release is R-3.5.1.

Note: Linux installation is very similar to Windows installation, but may differ depending on the flavor of Linux that is running.

Installing R
  1. Download of R for all platforms from http://www.r-project.org/. For Windows specifically, you can also go to https://cran.r-project.org/bin/windows/base/. For both Windows and Linux, select the 64-bit option.
  2. Start the installer. The installation of R must be done on the same system as the Jedox Suite. Note that for Linux installation, the R package must be installed in changeroot (chroot).
Installing R-package rJava (R to Java interface)
  1. Start the R console as an administrator and enter the command install.packages('rJava'). If you do not start the R console as an administrator, you may get an error message regarding insufficient authorization.
  2. Choose a CRAN mirror.

If the installation cannot be performed as above, try performing the following steps.

  1. Download the Windows binary corresponding to the R version (the file rJava*.zip) from http://www.rforge.net/rJava/files/.
  2. Start the R console.
  3. In the R console, enter install.packages(file.choose())
  4. A message is displayed, asking if you would like to use a personal library instead. Select No.
  5. In the File Picker, choose the downloaded file rJava*.zip.
Setting the system environment variables
  1. Set the system environment variable R_HOME to the R-installation directory, e.g. R_HOME=C:\Program Files\R\R-2.15.3 (Windows) or R_HOME =/usr/lib64/R (Linux).
  2. Add the path to the R executable to the system environment variable path. For example, in a 64-bit Tomcat installation on Windows, the path may be C:\Program Files\R\R-2.15.3\bin\x64. A Linux path is similar, and varies based on the flavor of Linux in use.
Changes in Jedox Integrator (already done by Jedox Setup)

Windows: in the file \tomcat\bin\setenv.bat, verify that the line starting with set Library_Path looks like  Library_Path=%R_HOME%\library\rJava\jri\x64

Linux: in the file \tomcat\bin\setenv.sh, add the line export R_HOME=/usr/lib64/R

If you need to define several directories for the Library_Path setting, the entries are separated by the character sequence ';'

Example: Library_Path=%R_HOME%\library\rJava\jri\x64';'C:\Program Files (x86)\Jedox\Jedox Suite\tomcat\webapps\etlserver\WEB-INF\lib\auth\x64

The Jedox Tomcat Service has to be removed and started again.

 

Related links: R Installation of External Packages, Transform R Script

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