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java.lang.Objectorg.apache.commons.math3.optim.linear.LinearObjectiveFunction
public class LinearObjectiveFunction
An objective function for a linear optimization problem.
A linear objective function has one the form:
c1x1 + ... cnxn + dThe ci and d are the coefficients of the equation, the xi are the coordinates of the current point.
Field Summary | |
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private RealVector |
coefficients
Coefficients of the linear equation (ci). |
private double |
constantTerm
Constant term of the linear equation. |
private static long |
serialVersionUID
Serializable version identifier. |
Constructor Summary | |
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LinearObjectiveFunction(double[] coefficients,
double constantTerm)
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LinearObjectiveFunction(RealVector coefficients,
double constantTerm)
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Method Summary | |
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boolean |
equals(Object other)
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RealVector |
getCoefficients()
Gets the coefficients of the linear equation being optimized. |
double |
getConstantTerm()
Gets the constant of the linear equation being optimized. |
int |
hashCode()
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private void |
readObject(ObjectInputStream ois)
Deserialize the instance. |
double |
value(double[] point)
Computes the value of the linear equation at the current point. |
double |
value(RealVector point)
Computes the value of the linear equation at the current point. |
private void |
writeObject(ObjectOutputStream oos)
Serialize the instance. |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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private static final long serialVersionUID
private final transient RealVector coefficients
private final double constantTerm
Constructor Detail |
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public LinearObjectiveFunction(double[] coefficients, double constantTerm)
coefficients
- Coefficients for the linear equation being optimized.constantTerm
- Constant term of the linear equation.public LinearObjectiveFunction(RealVector coefficients, double constantTerm)
coefficients
- Coefficients for the linear equation being optimized.constantTerm
- Constant term of the linear equation.Method Detail |
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public RealVector getCoefficients()
public double getConstantTerm()
public double value(double[] point)
value
in interface MultivariateFunction
point
- Point at which linear equation must be evaluated.
public double value(RealVector point)
point
- Point at which linear equation must be evaluated.
public boolean equals(Object other)
equals
in class Object
public int hashCode()
hashCode
in class Object
private void writeObject(ObjectOutputStream oos) throws IOException
oos
- stream where object should be written
IOException
- if object cannot be written to streamprivate void readObject(ObjectInputStream ois) throws ClassNotFoundException, IOException
ois
- stream from which the object should be read
ClassNotFoundException
- if a class in the stream cannot be found
IOException
- if object cannot be read from the stream
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