Introduction to The Command Line Interface in WEKA

1. The Command-line Interface

2. Introduction One can use the command line interface of Weka either through a command prompt or through the SimpleCLI mode For example to fire up Weka and run J48 on a ARFF file present in the current working directory, the command is: java weka.classifiers.trees.J48 -t weather.arff Weka consists of a hierarchical package system. For example here J48 program is part of the treespackage which further resides in the classifier package. Finally the wekapackage contains the classifiers package

3. Introduction

4. Structure of Weka Each time the Java virtual machine executes J48, it creates an instance of this class by allocating memory for building and storing a decision tree classifier The structure of Weka can also be studied from the online Javadoc of Weka

5. Command line options The -t option was used in the command line to communicate the name of the training file to the learning algorithm If you invoke a scheme without any command-line options at all, it displays the applicable options: first the general options, then the scheme-specific ones

6. Command line options General options

7. Command line options Scheme-specific options

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