我在 Windows 上安装了最新版本的 Weka
http://www.cs.waikato.ac.nz/ml/weka/
我尝试从命令行运行 weka 功能之一:
java weka.core.converters.TextDirectoryLoader -dir text_example > text_example.arff
这是对此的参考:http ://weka.wikispaces.com/Text+categorization+with+WEKA
但随后 weka 返回此错误:
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
Exception in thread "main" java.lang.NoClassDefFoundError: weka/core/converters/
TextDirectoryLoader
Caused by: java.lang.ClassNotFoundException: weka.core.converters.TextDirectoryL
oader
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: weka.core.converters.TextDirectoryLoader. Progra
m will exit.
我已经将 CLASSPATH 环境变量设置为指向 weka jar。
我做错什么了?