Class LinearObjectiveFunction
- java.lang.Object
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- org.apache.commons.math4.legacy.optim.linear.LinearObjectiveFunction
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- All Implemented Interfaces:
MultivariateFunction,OptimizationData
public class LinearObjectiveFunction extends Object implements MultivariateFunction, OptimizationData
An objective function for a linear optimization problem.A linear objective function has one the form:
The ci and d are the coefficients of the equation, the xi are the coordinates of the current point.c1x1 + ... cnxn + d- Since:
- 2.0
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Constructor Summary
Constructors Constructor Description LinearObjectiveFunction(double[] coefficients, double constantTerm)LinearObjectiveFunction(RealVector coefficients, double constantTerm)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanequals(Object other)RealVectorgetCoefficients()Gets the coefficients of the linear equation being optimized.doublegetConstantTerm()Gets the constant of the linear equation being optimized.inthashCode()doublevalue(double[] point)Computes the value of the linear equation at the current point.doublevalue(RealVector point)Computes the value of the linear equation at the current point.
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Constructor Detail
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LinearObjectiveFunction
public LinearObjectiveFunction(double[] coefficients, double constantTerm)
- Parameters:
coefficients- Coefficients for the linear equation being optimized.constantTerm- Constant term of the linear equation.
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LinearObjectiveFunction
public LinearObjectiveFunction(RealVector coefficients, double constantTerm)
- Parameters:
coefficients- Coefficients for the linear equation being optimized.constantTerm- Constant term of the linear equation.
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Method Detail
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getCoefficients
public RealVector getCoefficients()
Gets the coefficients of the linear equation being optimized.- Returns:
- coefficients of the linear equation being optimized.
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getConstantTerm
public double getConstantTerm()
Gets the constant of the linear equation being optimized.- Returns:
- constant of the linear equation being optimized.
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value
public double value(double[] point)
Computes the value of the linear equation at the current point.- Specified by:
valuein interfaceMultivariateFunction- Parameters:
point- Point at which linear equation must be evaluated.- Returns:
- the value of the linear equation at the current point.
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value
public double value(RealVector point)
Computes the value of the linear equation at the current point.- Parameters:
point- Point at which linear equation must be evaluated.- Returns:
- the value of the linear equation at the current point.
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