observationsequences.java

java实现的隐马尔科夫模型

/* jahmm package - v0.3.1 */

/*
 *  Copyright (c) 2004, Jean-Marc Francois.
 *
 *  This file is part of Jahmm.
 *  Jahmm 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.
 *
 *  Jahmm 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 Jahmm; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package be.ac.ulg.montefiore.run.jahmm.apps;

import java.util.*;

import be.ac.ulg.montefiore.run.jahmm.*;
import be.ac.ulg.montefiore.run.jahmm.io.*;


/*
 * Implements a list of observation sequences.
 */
public class ObservationSequences 
    extends ArrayList<List<Observation>> {
    
    static final public int INTEGER = 0; // Sequences made of integers
    static final public int VECTOR = 1;  // Sequences made of real vectors
    
    final public String name;
    
    final public int type;
    final public int dimension;    // Vectors dimension or integers bound value
    
    
    public ObservationSequences(String name, int type, int dimension) {
	this.name = name;
	this.type = type;
	this.dimension = dimension;
    }

    
    public String toString() {
	return name;
    }
    
    
    static public ObservationReader observationReader(int type, int dimension) {
	switch (type) {
	case INTEGER:
	    return new ObservationIntegerReader(dimension);
	
	case VECTOR:
	    return new ObservationVectorReader(dimension);
	    
	default:
	    throw new RuntimeException("Internal error");
	}
    }
    
    
    static public String describeType(int type) {
	return new String[] { "Integer", "Real vector" }[type];
    }
}