org.akutan.optimization.diversified
Class DVector

java.lang.Object
  org.akutan.optimization.diversified.DVector

All Implemented Interfaces:

java.lang.Cloneable

public class DVector
extends java.lang.Object
implements java.lang.Cloneable

This class encapsulates the assignment and structure of the various subcomponents of the interior point method solution. The Vector is broken out into x solution vector y lagrange multipliers for all constraints w slack vector for inquality constraints z dual variables for solution vector

Field Summary

protected int	_w1offset
protected int	_w1width
protected int	_w2offset
protected int	_w2width
protected int	_xoffset
protected int	_xwidth
protected int	_y0offset
protected int	_y0width
protected int	_y1offset
protected int	_y1width
protected int	_y2offset
protected int	_y2width
protected int	_zoffset
protected int	_zwidth

Constructor Summary

DVector(int uw, int vw, int xw)
Constructs

DVector(int uw, int vw, int xw, cern.colt.matrix.DoubleMatrix1D v)
Constructs

Method Summary

void	add(DVector v) Called to add a vector to this elementwise
java.lang.Object	clone() Clones the object with a deep copy
cern.colt.matrix.DoubleMatrix1D	get() Called to get access to the contents expressed as a 1D vector
cern.colt.matrix.DoubleMatrix1D	getW1() Called to return the W1 vector
cern.colt.matrix.DoubleMatrix1D	getW2() Called to return the W2 vector
cern.colt.matrix.DoubleMatrix1D	getX() Called to get access to the x vector
cern.colt.matrix.DoubleMatrix1D	getY0() Called to return the y0 vector
cern.colt.matrix.DoubleMatrix1D	getY1() Called to return the y1 vector
cern.colt.matrix.DoubleMatrix1D	getY2() Called to return the y2 vector
cern.colt.matrix.DoubleMatrix1D	getZ() Called to return the Z vector
DVector	multiply(double d) Returns a copy of this vector in which every element of the vector has been multiplied by the constant d.
DVector	negate() Called to negate an IPVector, copies the vector, negates the copy and then returns the negated copy.
int	rows() Returns the size of the wrapper DoubleMatrix1D
protected void	setup(int uw, int vw, int xw)
void	setW1(cern.colt.matrix.DoubleMatrix1D w1) Called to set the w1 vector
void	setW2(double w) Called to set the w2 vector to a constant
void	setW2(cern.colt.matrix.DoubleMatrix1D w2) Called to set the w2 vector
void	setX(double cons) Called to set all x values equal to cons
void	setX(cern.colt.matrix.DoubleMatrix1D x) Called to set x from a vector
void	setY0(double cons) Called to set all y0 values equal to cons
void	setY0(cern.colt.matrix.DoubleMatrix1D y0) Called to set all y0 values from a vector
void	setY1(double cons) Called to set all y1 values equal to cons
void	setY1(cern.colt.matrix.DoubleMatrix1D y1) Called to set all uy1 values from a vector
void	setY2(double cons) Called to set all y1 values equal to cons
void	setY2(cern.colt.matrix.DoubleMatrix1D y2) Called to set all uy1 values from a vector
void	setZ(double d) Called to set the z vector
void	setZ(cern.colt.matrix.DoubleMatrix1D z) Called to set the z vector
java.lang.String	toString() (non-Javadoc) Returns the string representation of the object, just delegates to the embedded vector
double	xDotProduct() Computes the distance (or something) of delta X * delta X which should be 0 at the solution.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

_xwidth

protected int _xwidth

_y0width

protected int _y0width

_y1width

protected int _y1width

_y2width

protected final int _y2width

See Also:

Constant Field Values

_w1width

protected int _w1width

_w2width

protected final int _w2width

See Also:

Constant Field Values

_zwidth

protected int _zwidth

_xoffset

protected final int _xoffset

See Also:

Constant Field Values

_y0offset

protected int _y0offset

_y1offset

protected int _y1offset

_y2offset

protected int _y2offset

_w1offset

protected int _w1offset

_w2offset

protected int _w2offset

_zoffset

protected int _zoffset

Constructor Detail

DVector

public DVector(int uw,
               int vw,
               int xw)

Constructs

Parameters:

uw - Number of equality constraints

vw - Number of inequality constraints

xw - Number of variables in the solution vector

DVector

public DVector(int uw,
               int vw,
               int xw,
               cern.colt.matrix.DoubleMatrix1D v)

Constructs

Parameters:

uw - Number of equality constraints

vw - Number of inequality constraints

xw - Number of variables in the solution vector

v - Vector to use for storage

Method Detail

setup

protected void setup(int uw,
                     int vw,
                     int xw)

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Clones the object with a deep copy

Overrides:

clone in class java.lang.Object

Throws:

java.lang.CloneNotSupportedException

setX

public void setX(double cons)

Called to set all x values equal to cons

Parameters:

cons -

setX

public void setX(cern.colt.matrix.DoubleMatrix1D x)

Called to set x from a vector

Parameters:

x -

getX

public cern.colt.matrix.DoubleMatrix1D getX()

Called to get access to the x vector

Returns:

The x portion of the vector

setY0

public void setY0(double cons)

Called to set all y0 values equal to cons

Parameters:

cons -

setY0

public void setY0(cern.colt.matrix.DoubleMatrix1D y0)

Called to set all y0 values from a vector

Parameters:

y0 -

getY0

public cern.colt.matrix.DoubleMatrix1D getY0()

Called to return the y0 vector

Returns:

y0 vector

setY1

public void setY1(double cons)

Called to set all y1 values equal to cons

Parameters:

cons -

setY1

public void setY1(cern.colt.matrix.DoubleMatrix1D y1)

Called to set all uy1 values from a vector

Parameters:

y1 -

getY1

public cern.colt.matrix.DoubleMatrix1D getY1()

Called to return the y1 vector

Returns:

y1 vector

setY2

public void setY2(double cons)

Called to set all y1 values equal to cons

Parameters:

cons -

setY2

public void setY2(cern.colt.matrix.DoubleMatrix1D y2)

Called to set all uy1 values from a vector

Parameters:

y2 -

getY2

public cern.colt.matrix.DoubleMatrix1D getY2()

Called to return the y2 vector

Returns:

y2 vector

setW1

public void setW1(cern.colt.matrix.DoubleMatrix1D w1)

Called to set the w1 vector

Parameters:

w1 - Vector of slack variables for inequality constraints

getW1

public cern.colt.matrix.DoubleMatrix1D getW1()

Called to return the W1 vector

Returns:

w1 vector

setW2

public void setW2(cern.colt.matrix.DoubleMatrix1D w2)

Called to set the w2 vector

Parameters:

w2 - Vector of slack variables

setW2

public void setW2(double w)

Called to set the w2 vector to a constant

Parameters:

w - Constant value to set all w2 elements to

getW2

public cern.colt.matrix.DoubleMatrix1D getW2()

Called to return the W2 vector

Returns:

w2 vector

setZ

public void setZ(double d)

Called to set the z vector

Parameters:

d - constant to set in all elements of the z vector

setZ

public void setZ(cern.colt.matrix.DoubleMatrix1D z)

Called to set the z vector

Parameters:

z - Vector to set the z vector from

getZ

public cern.colt.matrix.DoubleMatrix1D getZ()

Called to return the Z vector

Returns:

z vector

get

public cern.colt.matrix.DoubleMatrix1D get()

Called to get access to the contents expressed as a 1D vector

Returns:

A copy of the underlying vector

negate

public DVector negate()

Called to negate an IPVector, copies the vector, negates the copy and then returns the negated copy.

Returns:

Negated copy of the vector

multiply

public DVector multiply(double d)

Returns a copy of this vector in which every element of the vector has been multiplied by the constant d.

Parameters:

d - Constant to multiple values by

Returns:

New DVector with each element multiplied by d

rows

public int rows()

Returns the size of the wrapper DoubleMatrix1D

Returns:

Number of rows in vector

add

public void add(DVector v)

Called to add a vector to this elementwise

Parameters:

v - Elementwise adds a this vector to this

xDotProduct

public double xDotProduct()

Computes the distance (or something) of delta X * delta X which should be 0 at the solution.

Returns:

Measure of step size for termination checks

toString

public java.lang.String toString()

(non-Javadoc) Returns the string representation of the object, just delegates to the embedded vector

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()