Data Mining, 3rd Edition

CHAPTER 14

The Command-Line Interface

Lurking behind Weka’s interactive interfaces—the Explorer, the Knowledge Flow, and the Experimenter—lies its basic functionality. This can be accessed more directly through a command-line interface. Select Simple CLI from the interface choices at the right of Figure 11.3(a) to bring up a plain textual panel with a line at the bottom on which you enter commands. Alternatively, use the operating system’s command-line interface to run the classes in weka.jar, in which case you must first set the CLASSPATH environment variable as explained in Weka’s README file.

14.1 Getting started

At the beginning of Section 11.1 (page 410) we used the Explorer to invoke the J4.8 learner on the weather data. To do the same ...