com.datumbox.framework.core.common.dataobjects

Class MapRealVector

java.lang.Object

org.apache.commons.math3.linear.RealVector

org.apache.commons.math3.linear.SparseRealVector

org.apache.commons.math3.linear.OpenMapRealVector

com.datumbox.framework.core.common.dataobjects.MapRealVector

All Implemented Interfaces:

java.io.Serializable

public class MapRealVector
extends org.apache.commons.math3.linear.OpenMapRealVector

The MapRealVector class is a RealVector implementation which stores the data in a Map.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.commons.math3.linear.OpenMapRealVector

DEFAULT_ZERO_TOLERANCE

Constructor Summary

Constructors

Constructor and Description
MapRealVector() Build a 0-length vector.
MapRealVector(double[] values) Create from an array.
MapRealVector(java.lang.Double[] values) Create from an array.
MapRealVector(double[] values, double epsilon) Create from an array, specifying zero tolerance.
MapRealVector(java.lang.Double[] values, double epsilon) Create from an array.
MapRealVector(int dimension) Construct a vector of zeroes.
MapRealVector(int dimension, double epsilon) Construct a vector of zeroes, specifying zero tolerance.
MapRealVector(int dimension, int expectedSize) Build a vector with known the sparseness (for advanced use only).
MapRealVector(int dimension, int expectedSize, double epsilon) Build a vector with known the sparseness and zero tolerance setting (for advanced use only).
MapRealVector(MapRealVector v) Copy constructor.
MapRealVector(org.apache.commons.math3.linear.OpenMapRealVector v) Copy constructor.
MapRealVector(org.apache.commons.math3.linear.RealVector v) Generic copy constructor.

Method Summary

Modifier and Type	Method and Description
org.apache.commons.math3.linear.RealMatrix	outerProduct(org.apache.commons.math3.linear.RealVector v)

Methods inherited from class org.apache.commons.math3.linear.OpenMapRealVector

add, add, append, append, append, copy, dotProduct, ebeDivide, ebeMultiply, equals, getDimension, getDistance, getDistance, getEntry, getL1Distance, getL1Distance, getLInfDistance, getSparsity, getSubVector, hashCode, isInfinite, isNaN, mapAdd, mapAddToSelf, set, setEntry, setSubVector, sparseIterator, subtract, subtract, toArray, unitize, unitVector

Methods inherited from class org.apache.commons.math3.linear.RealVector

addToEntry, combine, combineToSelf, cosine, dotProduct, getL1Norm, getLInfNorm, getMaxIndex, getMaxValue, getMinIndex, getMinValue, getNorm, iterator, map, mapDivide, mapDivideToSelf, mapMultiply, mapMultiplyToSelf, mapSubtract, mapSubtractToSelf, mapToSelf, projection, unmodifiableRealVector, walkInDefaultOrder, walkInDefaultOrder, walkInDefaultOrder, walkInDefaultOrder, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder, walkInOptimizedOrder

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MapRealVector

public MapRealVector()

Build a 0-length vector.

MapRealVector

public MapRealVector(int dimension)

Construct a vector of zeroes.

Parameters:

dimension - Size of the vector.

MapRealVector

public MapRealVector(int dimension,
                     double epsilon)

Construct a vector of zeroes, specifying zero tolerance.

Parameters:

dimension - Size of the vector.

epsilon - Tolerance below which a value considered zero.

MapRealVector

public MapRealVector(int dimension,
                     int expectedSize)

Build a vector with known the sparseness (for advanced use only).

Parameters:

dimension - Size of the vector.

expectedSize - The expected number of non-zero entries.

MapRealVector

public MapRealVector(int dimension,
                     int expectedSize,
                     double epsilon)

Build a vector with known the sparseness and zero tolerance setting (for advanced use only).

Parameters:

dimension - Size of the vector.

expectedSize - Expected number of non-zero entries.

epsilon - Tolerance below which a value is considered zero.

MapRealVector

public MapRealVector(double[] values)

Create from an array. Only non-zero entries will be stored.

Parameters:

values - Set of values to create from.

MapRealVector

public MapRealVector(double[] values,
                     double epsilon)

Create from an array, specifying zero tolerance. Only non-zero entries will be stored.

Parameters:

values - Set of values to create from.

epsilon - Tolerance below which a value is considered zero.

MapRealVector

public MapRealVector(java.lang.Double[] values)

Create from an array. Only non-zero entries will be stored.

Parameters:

values - The set of values to create from

MapRealVector

public MapRealVector(java.lang.Double[] values,
                     double epsilon)

Create from an array. Only non-zero entries will be stored.

Parameters:

values - Set of values to create from.

epsilon - Tolerance below which a value is considered zero.

MapRealVector

public MapRealVector(MapRealVector v)

Copy constructor.

Parameters:

v - Instance to copy from.

MapRealVector

public MapRealVector(org.apache.commons.math3.linear.OpenMapRealVector v)

Copy constructor.

Parameters:

v - Instance to copy from.

MapRealVector

public MapRealVector(org.apache.commons.math3.linear.RealVector v)

Generic copy constructor.

Parameters:

v - Instance to copy from.

Method Detail

outerProduct

public org.apache.commons.math3.linear.RealMatrix outerProduct(org.apache.commons.math3.linear.RealVector v)

Overrides:

outerProduct in class org.apache.commons.math3.linear.RealVector