Package com.opttek.optquest

Class COptQuestDesignVariable

java.lang.Object

com.opttek.optquest.COptQuestVariable

com.opttek.optquest.COptQuestDiscreteVariable

com.opttek.optquest.COptQuestDesignVariable

public class COptQuestDesignVariable
extends COptQuestDiscreteVariable

Design variables are used when value of the decision variable represents an alternative, and not a quantity. For example, the variable may take on the values red, green or blue. Design variables are useful in optimization problems where the decision variables consist of choosing the best alternative from a catalog, and a larger number may not imply the commitment of more resources. Therefore, choice #10 may not be a more costly or a better choice than choice #1. These variables are defined by a lower bound, an upper bound, and a step size that controls the number of choices available within the specified range.

Constructor Summary

Constructors

Constructor	Description
COptQuestDesignVariable()	Default constructor
COptQuestDesignVariable(double lowerBound, double upperBound, double step)	Constructor that sets the lower bound, upper bound, and step size.
COptQuestDesignVariable(String name, double lowerBound, double upperBound, double step)	Constructor that assigns a name to the variable and sets the name, lower bound, upper bound, and step size.

Method Summary

Modifier and Type	Method	Description
void	SetExclusiveRange(double low, double high)	Illegal method for design variables.

Methods inherited from class com.opttek.optquest.COptQuestDiscreteVariable

GetStepSize, isZeroOne, SetStepSize

Methods inherited from class com.opttek.optquest.COptQuestVariable

equals, GetDOELowerBound, GetDOEUpperBound, GetExclusiveLowerBoundAt, GetExclusiveUpperBoundAt, getID, GetLowerBound, GetName, GetNumberOfExclusiveRanges, GetSuggestedValue, GetUpperBound, getVarRange, hashCode, SetLowerBound, SetName, SetUpperBound

Methods inherited from class java.lang.Object

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

Constructor Details

COptQuestDesignVariable

public COptQuestDesignVariable(String name,
 double lowerBound,
 double upperBound,
 double step)

Constructor that assigns a name to the variable and sets the name, lower bound, upper bound, and step size.

Parameters:

name - alphanumeric name. Note: the name can contain blanks or special characters. If the variable name is used in a COptQuestStringConstraint equation, the name should be enclosed in square brackets [] in the COptQuestStringConstraint string equation.

lowerBound - a value between -pow(2,31) and +pow(2,31)-1

upperBound - a value between -pow(2,31) and +pow(2,31)-1

step - step size

COptQuestDesignVariable

public COptQuestDesignVariable(double lowerBound,
 double upperBound,
 double step)

Constructor that sets the lower bound, upper bound, and step size.

Parameters:

lowerBound - a value between -pow(2,31) and +pow(2,31)-1

upperBound - a value between -pow(2,31) and +pow(2,31)-1

step - step size

COptQuestDesignVariable

public COptQuestDesignVariable()

Default constructor

Method Details

SetExclusiveRange

public void SetExclusiveRange(double low,
 double high)
                       throws COptQuestException

Illegal method for design variables.

Overrides:

SetExclusiveRange in class COptQuestVariable

Parameters:

low - - any value > low will be excluded

high - - any value < high will be excluded

Throws:

COptQuestException - if invalid range provided