WEKA运行参数修改(RunWeka.ini文件)

一般使用weka进行数据挖掘的时候会碰到两个问题,一是内存不够,二是libsvm使用不了,这时就需要重新配置RunWeka.ini文件,解决上述问题。查看RunWeka.ini原文如下:

 1 # Contains the commands for running Weka either with a command prompt

 2 # ("cmd_console") or without the command prompt ("cmd_default").

 3 # One can also define custom commands, which can be used with the Weka

 4 # launcher "RunWeka.class". E.g., to run the launcher with a setup called

 5 # "custom1", you only need to specify a key "cmd_custom1" which contains the

 6 # command specification.

 7 #

 8 # Notes: 

 9 # - This file is not a DOS ini file, but a Java properties file.

10 # - The settings listed here are key-value pairs, separated by a "=". Every

11 #   key can only be listed ONCE.

12 #

13 # Author  FracPete (fracpete at waikato dot ac dot nz)

14 # Version $Revision: 1.3 $

15 

16 # setups (prefixed with "cmd_")

17 cmd_default=javaw -Dfile.encoding=#fileEncoding# -Xmx#maxheap# #javaOpts# -classpath "#wekajar#;#cp#" #mainclass#

18 cmd_console=cmd.exe /K start cmd.exe /K "java -Dfile.encoding=#fileEncoding# -Xmx#maxheap# #javaOpts# -classpath \"#wekajar#;#cp#\" #mainclass#"

19 cmd_explorer=java -Dfile.encoding=#fileEncoding# -Xmx#maxheap# #javaOpts# -classpath "#wekajar#;#cp#" weka.gui.explorer.Explorer

20 cmd_knowledgeFlow=java -Dfile.encoding=#fileEncoding# -Xmx#maxheap# #javaOpts# -classpath "#wekajar#;#cp#" weka.gui.beans.KnowledgeFlow

21 

22 # placeholders ("#bla#" in command gets replaced with content of key "bla")

23 # Note: "#wekajar#" gets replaced by the launcher class, since that jar gets

24 #       provided as parameter

25 maxheap=1024M

26 # The MDI GUI

27 #mainclass=weka.gui.Main

28 # The GUIChooser

29 mainclass=weka.gui.GUIChooser

30 # The file encoding; use "utf-8" instead of "Cp1252" to display UTF-8 characters in the 

31 # GUI, e.g., the Explorer

32 fileEncoding=Cp1252

33 # The JAVA_OPTS environment variable (if set). Can be used as an alternative way to set

34 # the heap size (or any other JVM option)

35 javaOpts=%JAVA_OPTS%

36 # The classpath placeholder. Add any environment variables or jars to it that

37 # you need for your Weka environment.

38 # Example with an enviroment variable (e.g., THIRD_PARTY_LIBS):

39 #   cp=%CLASSPATH%;%THIRD_PARTY_LIBS%

40 # Example with an extra jar (located at D:\libraries\libsvm.jar):

41 #   cp=%CLASSPATH%;D:\\\\libraries\\\\libsvm.jar

42 # Or in order to avoid quadrupled backslashes, you can also use slashes "/":

43 #   cp=%CLASSPATH%;D:/libraries/libsvm.jar

44 cp=%CLASSPATH%

其中maxheap选项为配置weka最大使用内存,默认为1024M;

  cp选项为引入包所在路径,从注释中的说明可以看到libsvm包的添加方法;

  其他如:mainclass,fileEncoding,javaOpts分别为图形用户界面,文件编码,Java虚拟机选项。

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