OptimizationData
public class NelderMeadSimplex extends AbstractSimplex
Constructor | Description |
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NelderMeadSimplex(double[] steps) |
Build a Nelder-Mead simplex with default coefficients.
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NelderMeadSimplex(double[][] referenceSimplex) |
Build a Nelder-Mead simplex with default coefficients.
|
NelderMeadSimplex(double[][] referenceSimplex,
double rho,
double khi,
double gamma,
double sigma) |
Build a Nelder-Mead simplex with specified coefficients.
|
NelderMeadSimplex(double[] steps,
double rho,
double khi,
double gamma,
double sigma) |
Build a Nelder-Mead simplex with specified coefficients.
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NelderMeadSimplex(int n) |
Build a Nelder-Mead simplex with default coefficients.
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NelderMeadSimplex(int n,
double sideLength) |
Build a Nelder-Mead simplex with default coefficients.
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NelderMeadSimplex(int n,
double rho,
double khi,
double gamma,
double sigma) |
Build a Nelder-Mead simplex with specified coefficients.
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NelderMeadSimplex(int n,
double sideLength,
double rho,
double khi,
double gamma,
double sigma) |
Build a Nelder-Mead simplex with specified coefficients.
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Modifier and Type | Method | Description |
---|---|---|
void |
iterate(MultivariateFunction evaluationFunction,
Comparator<PointValuePair> comparator) |
Compute the next simplex of the algorithm.
|
build, evaluate, getDimension, getPoint, getPoints, getSize, replaceWorstPoint, setPoint, setPoints
public NelderMeadSimplex(int n)
n
- Dimension of the simplex.public NelderMeadSimplex(int n, double sideLength)
n
- Dimension of the simplex.sideLength
- Length of the sides of the default (hypercube)
simplex. See AbstractSimplex(int,double)
.public NelderMeadSimplex(int n, double sideLength, double rho, double khi, double gamma, double sigma)
n
- Dimension of the simplex. See
AbstractSimplex(int,double)
.sideLength
- Length of the sides of the default (hypercube)
simplex. See AbstractSimplex(int,double)
.rho
- Reflection coefficient.khi
- Expansion coefficient.gamma
- Contraction coefficient.sigma
- Shrinkage coefficient.public NelderMeadSimplex(int n, double rho, double khi, double gamma, double sigma)
n
- Dimension of the simplex. See
AbstractSimplex(int)
.rho
- Reflection coefficient.khi
- Expansion coefficient.gamma
- Contraction coefficient.sigma
- Shrinkage coefficient.public NelderMeadSimplex(double[] steps)
steps
- Steps along the canonical axes representing box edges.
They may be negative but not zero. Seepublic NelderMeadSimplex(double[] steps, double rho, double khi, double gamma, double sigma)
steps
- Steps along the canonical axes representing box edges.
They may be negative but not zero. See
AbstractSimplex(double[])
.rho
- Reflection coefficient.khi
- Expansion coefficient.gamma
- Contraction coefficient.sigma
- Shrinkage coefficient.IllegalArgumentException
- if one of the steps is zero.public NelderMeadSimplex(double[][] referenceSimplex)
referenceSimplex
- Reference simplex. See
AbstractSimplex(double[][])
.public NelderMeadSimplex(double[][] referenceSimplex, double rho, double khi, double gamma, double sigma)
referenceSimplex
- Reference simplex. See
AbstractSimplex(double[][])
.rho
- Reflection coefficient.khi
- Expansion coefficient.gamma
- Contraction coefficient.sigma
- Shrinkage coefficient.MathIllegalArgumentException
- if the reference simplex does not contain at least one point.MathIllegalArgumentException
- if there is a dimension mismatch in the reference simplex.public void iterate(MultivariateFunction evaluationFunction, Comparator<PointValuePair> comparator)
iterate
in class AbstractSimplex
evaluationFunction
- Evaluation function.comparator
- Comparator to use to sort simplex vertices from best
to worst.Copyright © 2016–2018 Hipparchus.org. All rights reserved.