Class PopulationChangeVector

java.lang.Object

java.util.AbstractCollection<Integer>

java.util.AbstractList<Integer>

java.util.ArrayList<Integer>

solvers.dataStructures.EnhancedVector

solvers.dataStructures.PopulationChangeVector

All Implemented Interfaces:

Serializable, Cloneable, Comparable<EnhancedVector>, Iterable<Integer>, Collection<Integer>, List<Integer>, RandomAccess, SequencedCollection<Integer>

public class PopulationChangeVector
extends EnhancedVector

This class implements the PopulationChangeVector object, which are used in in the definition of the CoMoM basis. It extends an EnhancedVector object.

Author:

Jack Bradshaw, 2012

See Also:

• Serialized Form

Field Summary

Fields inherited from class AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
PopulationChangeVector()	Creates an empty PopulationChangeVector object.
PopulationChangeVector(int k, int length)	Creates a new PopulationChangeVector of specific length, where all elements are equal to a specific value.
PopulationChangeVector(Integer[] P)	Creates an PopulationChangeVector with content equal to the given matrix.

Method Summary

Modifier and Type	Method	Description
PopulationChangeVector	copy()	This method returns a copy of the current PopulationChangeVector object.
int	RightMostNonZero()	returns index of the right-most non-zero element indices start from 0
int	sum(int from, int to)
int	sumHead(int index)
int	sumTail(int index)

Methods inherited from class EnhancedVector

addVec, compareTo, containsMinusOne, copyTo, countNonZeroElements, countZeroElements, equalsIgnoreHistory, fillFromMyVector, findFirstNonZeroElement, getAsBigRational, isOneVector, isZeroVector, max, min, minusOne, plusOne, print, restore, subVec, sum

Methods inherited from class ArrayList

add, add, addAll, addAll, addFirst, addLast, clear, clone, contains, ensureCapacity, equals, forEach, get, getFirst, getLast, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeFirst, removeIf, removeLast, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize

Methods inherited from class AbstractCollection

containsAll, toString

Methods inherited from class Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Collection

parallelStream, stream, toArray

Methods inherited from interface List

containsAll, reversed

Constructor Details

PopulationChangeVector

public PopulationChangeVector()

Creates an empty PopulationChangeVector object.

PopulationChangeVector

public PopulationChangeVector(Integer[] P)

Creates an PopulationChangeVector with content equal to the given matrix.

Parameters:

P - The matrix containing the vector elements

PopulationChangeVector

public PopulationChangeVector(int k,
 int length)

Creates a new PopulationChangeVector of specific length, where all elements are equal to a specific value.

Parameters:

k - The value of all elements

length - The length of the PopulationChangeVector

Method Details

copy

public PopulationChangeVector copy()

This method returns a copy of the current PopulationChangeVector object. Position and delta stacks are disregarded.

Overrides:

copy in class EnhancedVector

Returns:

Copy of the initial PopulationChangeVector object.

sum

public int sum(int from,
 int to)

sumTail

public int sumTail(int index)

sumHead

public int sumHead(int index)

RightMostNonZero

public int RightMostNonZero()

returns index of the right-most non-zero element indices start from 0