Code/Resource
Windows Develop
Linux-Unix program
Internet-Socket-Network
Web Server
Browser Client
Ftp Server
Ftp Client
Browser Plugins
Proxy Server
Email Server
Email Client
WEB Mail
Firewall-Security
Telnet Server
Telnet Client
ICQ-IM-Chat
Search Engine
Sniffer Package capture
Remote Control
xml-soap-webservice
P2P
WEB(ASP,PHP,...)
TCP/IP Stack
SNMP
Grid Computing
SilverLight
DNS
Cluster Service
Network Security
Communication-Mobile
Game Program
Editor
Multimedia program
Graph program
Compiler program
Compress-Decompress algrithms
Crypt_Decrypt algrithms
Mathimatics-Numerical algorithms
MultiLanguage
Disk/Storage
Java Develop
assembly language
Applications
Other systems
Database system
Embeded-SCM Develop
FlashMX/Flex
source in ebook
Delphi VCL
OS Develop
MiddleWare
MPI
MacOS develop
LabView
ELanguage
Software/Tools
E-Books
Artical/Document
MakeIndicator.java
Package: Weka-3-2.rar [view]
Upload User: rhdiban
Upload Date: 2013-08-09
Package Size: 15085k
Code Size: 12k
Category:
Windows Develop
Development Platform:
Java
- /*
- * 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 2 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, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /*
- * MakeIndicator.java
- * Copyright (C) 1999 Eibe Frank
- *
- */
- package weka.filters.unsupervised.attribute;
- import weka.filters.*;
- import java.io.*;
- import java.util.*;
- import weka.core.*;
- /**
- * Creates a new dataset with a boolean attribute replacing a nominal
- * attribute. In the new dataset, a value of 1 is assigned to an
- * instance that exhibits a particular range of attribute values, a 0 to an
- * instance that doesn't. The boolean attribute is coded as numeric by
- * default.<p>
- *
- * Valid filter-specific options are: <p>
- *
- * -C col <br>
- * Index of the attribute to be changed. (default "last")<p>
- *
- * -V index1,index2-index4,...<br>
- * Specify list of values to indicate. First and last are valid indices.
- * (default "last")<p>
- *
- * -N <br>
- * Set if new boolean attribute nominal.<p>
- *
- * @author Eibe Frank (eibe@cs.waikato.ac.nz)
- * @version $Revision: 1.1 $
- *
- */
- public class MakeIndicator extends Filter
- implements UnsupervisedFilter, StreamableFilter, OptionHandler {
- /** The attribute's index option setting. */
- private int m_AttIndexSet = -1;
- /** The attribute's index */
- private int m_AttIndex;
- /** The value's index */
- private Range m_ValIndex;
- /** Make boolean attribute numeric. */
- private boolean m_Numeric = true;
- public MakeIndicator() {
- m_ValIndex = new Range("last");
- }
- /**
- * Sets the format of the input instances.
- *
- * @param instanceInfo an Instances object containing the input
- * instance structure (any instances contained in the object are
- * ignored - only the structure is required).
- * @return true if the outputFormat may be collected immediately
- * @exception UnsupportedAttributeTypeException the selecte attribute is not nominal
- * @exception UnsupportedAttributeTypeException the selecte attribute has fewer than two values.
- */
- public boolean setInputFormat(Instances instanceInfo)
- throws Exception {
- super.setInputFormat(instanceInfo);
- m_AttIndex = m_AttIndexSet;
- if (m_AttIndex < 0) {
- m_AttIndex = instanceInfo.numAttributes() - 1;
- }
- m_ValIndex.setUpper(instanceInfo.attribute(m_AttIndex).numValues() - 1);
- if (!instanceInfo.attribute(m_AttIndex).isNominal()) {
- throw new UnsupportedAttributeTypeException("Chosen attribute not nominal.");
- }
- if (instanceInfo.attribute(m_AttIndex).numValues() < 2) {
- throw new UnsupportedAttributeTypeException("Chosen attribute has less than two values.");
- }
- setOutputFormat();
- return true;
- }
- /**
- * Input an instance for filtering. The instance is processed
- * and made available for output immediately.
- *
- * @param instance the input instance
- * @return true if the filtered instance may now be
- * collected with output().
- * @exception IllegalStateException if no input format has been set.
- */
- public boolean input(Instance instance) {
- if (getInputFormat() == null) {
- throw new IllegalStateException("No input instance format defined");
- }
- if (m_NewBatch) {
- resetQueue();
- m_NewBatch = false;
- }
- Instance newInstance = (Instance)instance.copy();
- if (!newInstance.isMissing(m_AttIndex)) {
- if (m_ValIndex.isInRange((int)newInstance.value(m_AttIndex))) {
- newInstance.setValue(m_AttIndex, 1);
- } else {
- newInstance.setValue(m_AttIndex, 0);
- }
- }
- push(newInstance);
- return true;
- }
- /**
- * Returns an enumeration describing the available options.
- *
- * @return an enumeration of all the available options.
- */
- public Enumeration listOptions() {
- Vector newVector = new Vector(3);
- newVector.addElement(new Option(
- "tSets the attribute index.",
- "C", 1, "-C <col>"));
- newVector.addElement(new Option(
- "tSpecify the list of values to indicate. First and last aren"+
- "tvalid indexes (default last)",
- "V", 1, "-V <index1,index2-index4,...>"));
- newVector.addElement(new Option(
- "tSet if new boolean attribute nominal.",
- "N", 0, "-N <index>"));
- return newVector.elements();
- }
- /**
- * Parses the options for this object. Valid options are: <p>
- *
- * -C col <br>
- * Index of the attribute to be changed.<p>
- *
- * -V index1,index2-index4,...<br>
- * Specify list of values to indicate. First and last are valid indices.
- * (default "last")<p>
- *
- * -N <br>
- * Set if new boolean attribute nominal.<p>
- *
- * @param options the list of options as an array of strings
- * @exception Exception if an option is not supported
- */
- public void setOptions(String[] options) throws Exception {
- String attIndex = Utils.getOption('C', options);
- if (attIndex.length() != 0) {
- if (attIndex.toLowerCase().equals("last")) {
- setAttributeIndex(-1);
- } else if (attIndex.toLowerCase().equals("first")) {
- setAttributeIndex(0);
- } else {
- setAttributeIndex(Integer.parseInt(attIndex) - 1);
- }
- } else {
- setAttributeIndex(-1);
- }
- String valIndex = Utils.getOption('V', options);
- if (valIndex.length() != 0) {
- setValueIndices(valIndex);
- } else {
- setValueIndices("last");
- }
- setNumeric(!Utils.getFlag('N', options));
- if (getInputFormat() != null) {
- setInputFormat(getInputFormat());
- }
- }
- /**
- * Gets the current settings of the filter.
- *
- * @return an array of strings suitable for passing to setOptions
- */
- public String [] getOptions() {
- String [] options = new String [5];
- int current = 0;
- options[current++] = "-C";
- options[current++] = "" + (getAttributeIndex() + 1);
- options[current++] = "-V";
- options[current++] = getValueIndices();
- if (!getNumeric()) {
- options[current++] = "-N";
- }
- while (current < options.length) {
- options[current++] = "";
- }
- return options;
- }
- /**
- * @return a description of the filter suitable for
- * displaying in the explorer/experimenter gui
- */
- public String globalInfo() {
- return "A filter that creates a new dataset with a boolean attribute "
- + "replacing a nominal attribute. In the new dataset, a value of 1 is "
- + "assigned to an instance that exhibits a particular range of attribute "
- + "values, a 0 to an instance that doesn't. The boolean attribute is "
- + "coded as numeric by default.";
- }
- /**
- * @return tip text for this property suitable for
- * displaying in the explorer/experimenter gui
- */
- public String attributeIndexTipText() {
- return "Sets which attribute should be replaced by the indicator. This "
- + "attribute must be nominal. Give the attribute index (numbered from "
- + "0). Use -1 to indicate the last attribute.";
- }
- /**
- * Get the index of the attribute used.
- *
- * @return the index of the attribute
- */
- public int getAttributeIndex() {
- return m_AttIndexSet;
- }
- /**
- * Sets index of of the attribute used.
- *
- * @param index the index of the attribute
- */
- public void setAttributeIndex(int attIndex) {
- m_AttIndexSet = attIndex;
- }
- /**
- * Get the range containing the indicator values.
- *
- * @return the range containing the indicator values
- */
- public Range getValueRange() {
- return m_ValIndex;
- }
- /**
- * @return tip text for this property suitable for
- * displaying in the explorer/experimenter gui
- */
- public String valueIndicesTipText() {
- return "Specify range of nominal values to act on."
- + " This is a comma separated list of attribute indices (numbered from"
- + " 1), with "first" and "last" valid values. Specify an inclusive"
- + " range with "-". E.g: "first-3,5,6-10,last".";
- }
- /**
- * Get the indices of the indicator values.
- *
- * @return the indices of the indicator values
- */
- public String getValueIndices() {
- return m_ValIndex.getRanges();
- }
- /**
- * Sets indices of the indicator values.
- *
- * @param range the string representation of the indicator value indices
- * @see Range
- */
- public void setValueIndices(String range) {
- m_ValIndex.setRanges(range);
- }
- /**
- * Sets index of the indicator value.
- *
- * @param index the index of the indicator value
- */
- public void setValueIndex(int index) {
- setValueIndices("" + (index + 1));
- }
- /**
- * Set which attributes are to be deleted (or kept if invert is true)
- *
- * @param attributes an array containing indexes of attributes to select.
- * Since the array will typically come from a program, attributes are indexed
- * from 0.
- * @exception InvalidArgumentException if an invalid set of ranges is supplied
- */
- public void setValueIndicesArray(int [] indices) {
- setValueIndices(Range.indicesToRangeList(indices));
- }
- /**
- * @return tip text for this property suitable for
- * displaying in the explorer/experimenter gui
- */
- public String numericTipText() {
- return "Determines whether the output indicator attribute is numeric. If "
- + "this is set to false, the output attribute will be nominal.";
- }
- /**
- * Sets if the new Attribute is to be numeric.
- *
- * @param bool true if new Attribute is to be numeric
- */
- public void setNumeric(boolean bool) {
- m_Numeric = bool;
- }
- /**
- * Check if new attribute is to be numeric.
- *
- * @return true if new attribute is to be numeric
- */
- public boolean getNumeric() {
- return m_Numeric;
- }
- /**
- * Set the output format.
- */
- private void setOutputFormat() {
- Instances newData;
- FastVector newAtts, newVals;
- // Compute new attributes
- newAtts = new FastVector(getInputFormat().numAttributes());
- for (int j = 0; j < getInputFormat().numAttributes(); j++) {
- Attribute att = getInputFormat().attribute(j);
- if (j != m_AttIndex) {
- // We don't have to copy the attribute because the
- // attribute index remains unchanged.
- newAtts.addElement(att);
- } else {
- if (m_Numeric) {
- newAtts.addElement(new Attribute(att.name()));
- } else {
- String vals;
- int [] sel = m_ValIndex.getSelection();
- if (sel.length == 1) {
- vals = att.value(sel[0]);
- } else {
- vals = m_ValIndex.getRanges().replace(',','_');
- }
- newVals = new FastVector(2);
- newVals.addElement("neg_" + vals);
- newVals.addElement("pos_" + vals);
- newAtts.addElement(new Attribute(att.name(), newVals));
- }
- }
- }
- // Construct new header
- newData = new Instances(getInputFormat().relationName(), newAtts, 0);
- newData.setClassIndex(getInputFormat().classIndex());
- setOutputFormat(newData);
- }
- /**
- * Main method for testing this class.
- *
- * @param argv should contain arguments to the filter:
- * use -h for help
- */
- public static void main(String [] argv) {
- try {
- if (Utils.getFlag('b', argv)) {
- Filter.batchFilterFile(new MakeIndicator(), argv);
- } else {
- Filter.filterFile(new MakeIndicator(), argv);
- }
- } catch (Exception ex) {
- System.out.println(ex.getMessage());
- }
- }
- }