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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This is the stable version. Apart from bugfixes, this version
does not receive any other updates.
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
/*
* SVMLightSaver.java
* Copyright (C) 2006-2012 University of Waikato, Hamilton, NZ
*
*/
package weka.core.converters;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Vector;
import weka.core.Capabilities;
import weka.core.Capabilities.Capability;
import weka.core.Instance;
import weka.core.Instances;
import weka.core.Option;
import weka.core.RevisionUtils;
import weka.core.SingleIndex;
import weka.core.Utils;
/**
* Writes to a destination that is in svm light
* format.
*
* For more information about svm light see:
*
* http://svmlight.joachims.org/
*
*
*
* Valid options are:
*
*
*
* -i <the input file>
* The input file
*
*
*
* -o <the output file>
* The output file
*
*
*
* -c <class index>
* The class index
* (default: last)
*
*
*
*
* @author FracPete (fracpete at waikato dot ac dot nz)
* @version $Revision: 10203 $
* @see Saver
*/
public class SVMLightSaver extends AbstractFileSaver implements BatchConverter,
IncrementalConverter {
/** for serialization. */
private static final long serialVersionUID = 2605714599263995835L;
/** the file extension. */
public static String FILE_EXTENSION = SVMLightLoader.FILE_EXTENSION;
/** the number of digits after the decimal point. */
public static int MAX_DIGITS = 18;
/** the class index. */
protected SingleIndex m_ClassIndex = new SingleIndex("last");
/**
* Constructor.
*/
public SVMLightSaver() {
resetOptions();
}
/**
* Returns a string describing this Saver.
*
* @return a description of the Saver suitable for displaying in the
* explorer/experimenter gui
*/
public String globalInfo() {
return "Writes to a destination that is in svm light format.\n\n"
+ "For more information about svm light see:\n\n"
+ "http://svmlight.joachims.org/";
}
/**
* Returns an enumeration describing the available options.
*
* @return an enumeration of all the available options.
*/
@Override
public Enumeration