Installing RWeka

This is a step-by-step manual for installing RWeka (Version 0.4-40) for R (Version 3.5.3) in Ubuntu 14.04 for beginners. To install the latest version of R in Ubuntu 14.04 visit this.

Requirements

Here is a list of requirements:

• Having administrative privileges
• Accessing terminal
• Internet connection

Step 0

Open terminal using either (Ctrl + Alt + t) or Search and type in terminal and then hit Enter

Step 1

Copy-and-paste the following commands into terminal, one at a time, and then hit Enter

sudo apt-get install -y default-jre
sudo apt-get install -y default-jdk
sudo R CMD javareconf

Step 2

Open RStudio or R and copy-and-paste the following command into console and hit Enter

install.packages("rJava")

Step 3

Copy-and-paste the following command to check the current version of Java on your machine

java -version

If the output values are less the ones in the following, go to Step 4, otherwise, go to Step 5

openjdk version "1.8.0_171"
OpenJDK Runtime Environment (build 1.8.0_171-8u171-b11-2~14.04-b11)
OpenJDK 64-Bit Server VM (build 25.171-b11, mixed mode)

Step 4

RWeka requires at least Java version 8, copy-and-paste the following commands into terminal, one at a time, to install the required version

sudo add-apt-repository ppa:openjdk-r/ppa
sudo apt-get update
sudo apt-get install openjdk-8-jdk

In order to let R use the correct version of Java, copy-and-paste the following commands into terminal, one at a time, and hit Enter to change the default version of Java

sudo update-alternatives --config java
sudo update-alternatives --config javac

Note: For both choose openjdk-8-jdk

Step 5

Now the system is ready to install the last set of requirements through terminal. Copy-and-paste the following commands into terminal, one at a time, and hit Enter

sudo apt-get install r-cran-rjava
sudo apt-get install libgdal-dev libproj-dev
R CMD javareconf -e

Note: If the Java version is still outdated after running R CMD javareconf -e, then run sudo R CMD javareconf JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64 and hit Enter

Step 6

Now, go back to RStudio or R and copy-and-paste the following command into console and hit Enter

install.packages("RWeka")

More info

Check the following references for further information

• Installing BLAS and LAPACK packages
• Installing OpenJDK on Debian-based systems
• Installing R
• Installing RJava (Ubuntu)
• rJava is not picking up the correct Java version