Class LogisticFunction

java.lang.Object

solvers.queueingnet.montecarloLogistic.numericalIntegration.SafeFunction

solvers.queueingnet.montecarloLogistic.solver.LogisticFunctionBase

solvers.queueingnet.montecarloLogistic.solver.LogisticFunction

All Implemented Interfaces:

Function

Direct Known Subclasses:

LogisticFunctionMult

public class LogisticFunction
extends LogisticFunctionBase

Extends the SafeFunction abstract class. This is the logistic function under the additive transform without any delay

Field Summary

Fields

Modifier and Type	Field	Description
protected cern.colt.matrix.linalg.Algebra	A
protected cern.colt.matrix.DoubleMatrix2D	demands
protected cern.colt.matrix.DoubleMatrix2D	demands_k
protected cern.colt.matrix.DoubleMatrix1D	demands_K
protected double	epsilon
protected double	eta
protected int	K
protected MathContext	MC
protected int	N
protected cern.colt.matrix.DoubleMatrix1D	pop
protected int	R

Fields inherited from class LogisticFunctionBase

hess_stat, u_stat, v_stat, x_stat

Fields inherited from class SafeFunction

ndim

Constructor Summary

Constructors

Constructor	Description
LogisticFunction(int ndim, int[] population, double[][] demands, double epsilon)
LogisticFunction(int ndim, int[] population, double[][] demands, double epsilon, MathContext MC)
LogisticFunction(int ndim, cern.colt.matrix.DoubleMatrix1D population, cern.colt.matrix.DoubleMatrix2D demands, double epsilon, MathContext MC)
LogisticFunction(LogisticFunction LF)

Method Summary

Modifier and Type	Method	Description
void	calculate_hessian()	Stationary point Hessian calculations for single server networks
void	calculate_stationary_point()	Iterative stationary point calculations for single server networks
protected void	checkInDomain(double[] point)	Function that checks point in within the domain of the function
Function	copy()	Implements the copy() function specified in base class
protected BigDecimal	safeEvaluate(double[] point)	Implements the safeEvaluate abstract method.

Methods inherited from class LogisticFunctionBase

getHess_stat, getU_stat, getV_stat, getX_stat

Methods inherited from class SafeFunction

checkPoint, evaluate

Methods inherited from class Object

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

Field Details

N

protected int N

R

protected int R

K

protected int K

eta

protected double eta

epsilon

protected double epsilon

demands

protected cern.colt.matrix.DoubleMatrix2D demands

demands_k

protected cern.colt.matrix.DoubleMatrix2D demands_k

demands_K

protected cern.colt.matrix.DoubleMatrix1D demands_K

pop

protected cern.colt.matrix.DoubleMatrix1D pop

A

protected cern.colt.matrix.linalg.Algebra A

MC

protected MathContext MC

Constructor Details

LogisticFunction

public LogisticFunction(int ndim,
 int[] population,
 double[][] demands,
 double epsilon)
                 throws InternalErrorException

Throws:

InternalErrorException

LogisticFunction

public LogisticFunction(int ndim,
 cern.colt.matrix.DoubleMatrix1D population,
 cern.colt.matrix.DoubleMatrix2D demands,
 double epsilon,
 MathContext MC)
                 throws InternalErrorException

Throws:

InternalErrorException

LogisticFunction

public LogisticFunction(int ndim,
 int[] population,
 double[][] demands,
 double epsilon,
 MathContext MC)
                 throws InternalErrorException

Throws:

InternalErrorException

LogisticFunction

public LogisticFunction(LogisticFunction LF)
                 throws InternalErrorException

Throws:

InternalErrorException

Method Details

safeEvaluate

protected BigDecimal safeEvaluate(double[] point)
                           throws InternalErrorException

Implements the safeEvaluate abstract method. Computes the logistic additive function at the point given by point

Specified by:

safeEvaluate in class SafeFunction

Parameters:

point - Array representing point to be evaluated

Returns:

BigDecimal equal to the function value at that point

Throws:

InternalErrorException - if the operation cannot be completed

checkInDomain

protected void checkInDomain(double[] point)
                      throws InternalErrorException

Description copied from class: SafeFunction

Function that checks point in within the domain of the function

Specified by:

checkInDomain in class SafeFunction

Parameters:

point - Point to be checked

Throws:

InternalErrorException - When point is invalid

copy

public Function copy()
              throws InternalErrorException

Implements the copy() function specified in base class

Returns:

copy of this function interface

Throws:

InternalErrorException

calculate_stationary_point

public void calculate_stationary_point()

Iterative stationary point calculations for single server networks

Specified by:

calculate_stationary_point in class LogisticFunctionBase

calculate_hessian

public void calculate_hessian()

Stationary point Hessian calculations for single server networks

Specified by:

calculate_hessian in class LogisticFunctionBase