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Contents
- Install R
- Install Rserve Package
- Install ROracle Package
Install R
In order to get R running on RHEL 6, we need to add an additional repository that allows us to install the new packages.The EPEL (Extra Packages for Enterprise Linux) is a Fedora Special Interest Groupthat creates, maintains, and manages a high quality set of additional packages for Enterprise Linux,including, but not limited to, Red Hat Enterprise Linux (RHEL), CentOS and Scientific Linux (SL), Oracle Linux (OL).
EPEL Repository
First, login as root user, and add EPEL repository:
You can also search for additional R packages using yum command:
When the installation is finished successfully, you can run R:
To verify is EPEL repository is enabled, run following command:
And the output could be like:
[Optional] CentOS Repository
Sometimes, there could be some library missing while installing R using yum.In this case, you may need add CentOS repository by creating a new repository file:
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And add following contents (note that you need to change the version number depending on your RHEL version):
Install Rserve Package
Download and Install
Find the Rserve package file in our R archive, or download the latest version fromCRAN.
Then use R CMD to install the package (the file name could be different):
Configuration
Rserve is configured by the configuration file /etc/Rserv.conf.If no configuration file is supplied, Rserve accepts no remote connections,requires no authentication and file transfer is enabled.To enable remote access, we need to create a configuration file and enable remote:
The other possible configuration items are as follows(all entries are optional, default values are in angled brackets):
Start Rserve
Login as rudolph user and start the Rserve by:
Then check if the Rserve can be remotely accessed from other machine:
If you have an accessible Rserve, you should see a response like:
Install ROracle Package
Find the R package files (DBI and ROracle) in our R archive, or download the latest version fromDBIand ROracle.
Install DBI
Install ROracle
If you have Oracle Client installed, you need to set LD_LIBRARY_PATH and ORACLE_HOME variables.For example, if the Oracle was installed in /apps/oracle/product/11g, then you need to do following:
If you have Oracle Instant Client installed, you need to set OCI_LIB and LD_LIBRARY_PATH variables.For example, if the Instant Client was installed in ‘/apps/oracle/instantclient_11_2’, then you need to do following:
To verify if ROracle is installed, you can launch R console by running R and load the library:
For more details about installing ROracle, please refer to https://cran.r-project.org/web/packages/ROracle/INSTALL.
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Uninstall R
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Suppose you install R using yum, then you can use the following commands to totally uninstall R: