com.opttek.optquest
Class COptQuestObjectiveFunction

java.lang.Object
  com.opttek.optquest.COptQuestObjective
      com.opttek.optquest.COptQuestObjectiveFunction

public class COptQuestObjectiveFunction
extends COptQuestObjective

The COptQuestObjectiveFunction class is used to define a linear objective. Linear objectives are in the form coeff1 * var1 + coeff2 * var2 + ... + coeffn * varN.

Constructor Summary

COptQuestObjectiveFunction()
Default constructor

COptQuestObjectiveFunction(java.lang.String name)
Constructor that assigns a name to the objective

Method Summary

void	AddVariable(COptQuestVariable variable, double coefficient) Adds a variable and its coefficient to the linear objective which has the form coeff1 * var1 + coeff2 + var2 + coeffn * varN.
void	ChangeVariableCoefficient(COptQuestVariable var, double coefficient)
double	GetCoefficientAt(int index) Returns the coefficient at the specified index.
long	GetNumberOfVariables() Returns the number of variable/coefficient pairs that were added to the linear objective.
int	GetNumCoefficients() Returns the number of variable/coefficient pairs that were added to the linear objective.
COptQuestVariable	GetVariableAt(int index) Returns the variable at the specified index.
boolean	IsLinear() Returns true.

Methods inherited from class com.opttek.optquest.COptQuestObjective

GetBestFeasible, GetBestValue, GetCurrentFeasible, GetCurrentFeasible, GetCurrentValue, GetCurrentValue, GetName, GetNthBestFeasible, GetNthBestValue, GetReplicationConfidenceLevel, GetReplicationConfidencePercent, GetReplicationConfidenceType, IsMaximize, IsMinimize, SetCurrentValue, SetCurrentValue, SetMaximize, SetMinimize, SetName, SetReplicationConfidence

Methods inherited from class java.lang.Object

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

Constructor Detail

COptQuestObjectiveFunction

public COptQuestObjectiveFunction(java.lang.String name)

Constructor that assigns a name to the objective

Parameters:

name - alphanumeric name

COptQuestObjectiveFunction

public COptQuestObjectiveFunction()

Default constructor

Method Detail

AddVariable

public void AddVariable(COptQuestVariable variable,
                        double coefficient)

Adds a variable and its coefficient to the linear objective which has the form coeff1 * var1 + coeff2 + var2 + coeffn * varN. This method is called once for each variable.

Parameters:

variable -

coefficient -

ChangeVariableCoefficient

public void ChangeVariableCoefficient(COptQuestVariable var,
                                      double coefficient)

GetNumberOfVariables

public long GetNumberOfVariables()

Returns the number of variable/coefficient pairs that were added to the linear objective.

Returns:

number of variables added to the linear objective

GetVariableAt

public COptQuestVariable GetVariableAt(int index)

Returns the variable at the specified index.

Parameters:

index - value between 0 and the number of variables added to the linear objective

Returns:

the decision variable at the specified index

GetCoefficientAt

public double GetCoefficientAt(int index)

Returns the coefficient at the specified index.

Parameters:

index - value between 0 and the number of variables added to the linear objective

Returns:

the coefficient at the specified index

IsLinear

public boolean IsLinear()

Returns true. COptQuestObjectiveFunction objects define a linear objective.

Overrides:

IsLinear in class COptQuestObjective

Returns:

true if the objective is a linear function of the decision variables.

GetNumCoefficients

public int GetNumCoefficients()

Returns the number of variable/coefficient pairs that were added to the linear objective.

Returns:

- the number of coefficients added to the linear objective.