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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This version represents the developer version, the
"bleeding edge" of development, you could say. New functionality gets added
to this version.
/*
* 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 .
*/
/*
* Remove.java
* Copyright (C) 1999-2012 University of Waikato, Hamilton, New Zealand
*
*/
package weka.filters.unsupervised.attribute;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Vector;
import weka.core.Attribute;
import weka.core.Capabilities;
import weka.core.Capabilities.Capability;
import weka.core.DenseInstance;
import weka.core.Instance;
import weka.core.Instances;
import weka.core.Option;
import weka.core.OptionHandler;
import weka.core.Range;
import weka.core.RevisionUtils;
import weka.core.SparseInstance;
import weka.core.Utils;
import weka.filters.Filter;
import weka.filters.StreamableFilter;
import weka.filters.UnsupervisedFilter;
/**
* An filter that removes a range of attributes from
* the dataset. Will re-order the remaining attributes if invert matching sense
* is turned on and the attribute column indices are not specified in ascending
* order.
*
*
*
* Valid options are:
*
*
*
* -R <index1,index2-index4,...>
* Specify list of columns to delete. First and last are valid
* indexes. (default none)
*
*
*
* -V
* Invert matching sense (i.e. only keep specified columns)
*
*
*
*
* @author Len Trigg ([email protected])
* @version $Revision: 10215 $
*/
public class Remove extends Filter implements UnsupervisedFilter,
StreamableFilter, OptionHandler {
/** for serialization */
static final long serialVersionUID = 5011337331921522847L;
/** Stores which columns to select as a funky range */
protected Range m_SelectCols = new Range();
/**
* Stores the indexes of the selected attributes in order, once the dataset is
* seen
*/
protected int[] m_SelectedAttributes;
/**
* Constructor so that we can initialize the Range variable properly.
*/
public Remove() {
m_SelectCols.setInvert(true);
}
/**
* Returns an enumeration describing the available options.
*
* @return an enumeration of all the available options.
*/
@Override
public Enumeration