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Weka on a memory stick

The following guide explains how to put Weka on a USB memory stick. This works both for Linux and Windows (Mac OSX as well).

For simplicity, this example is demonstrated with the following versions:

  • Weka: 3.5.3
  • JRE: 1.5.0_10

Preliminaries#

  • download a Weka ZIP (Windows: don't download the Installer!)
  • download the JRE (Java Runtime Environemnt) that works with the downloaded Weka version. (Linux: don't download the RPM, but the Linux self-extracting file)
  • install the downloaded JRE
    • Windows:

      the JRE location is normally in C:\Program Files\Java

    • Linux:

      the self-extracting file creates a directory containing the JRE at the same location as the installation file

Setup#

  • create a directory on your memory stick that will hold Weka and the JRE:

 weka
* unzip the Weka ZIP into the weka directory, which will create the following sub-directory; 
 weka-3-5-3
* copy the JRE onto the stick in the weka directory, which will be this sub-directory:

 jre1.5.0_10

Script#

As a final step, create a script to start Weka:

  • Windows

    • create a new batch file called weka.bat in the directory weka with the following content 
       @echo off
 set CP=%CLASSPATH%;.\weka-3-5-3\weka.jar
 start .\jre1.5.0_10\bin\javaw -classpath "%CP%" weka.gui.GUIChooser

      Note: If start is not available in your flavor of Windows, you can drop it. It is only used to get rid of the DOS-Box.

  • Linux

    • create a new bash script called weka.sh in the directory weka with the following content 
       #!/bin/bash
 CP=$CLASSPATH:./weka-3-5-3/weka.jar
 ./jre1.5.0_10/bin/java -classpath $CP weka.gui.GUIChooser

      Note: since memory sticks normally use the FAT32 file-system you probably won't need to make it executable

Execution#

  • Windows:

    just double-click on the batch file

  • Linux:

    open a terminal and execute the bash script