java.lang.Object
- gov.nih.mipav.model.algorithms.NelderMead

```
public abstract class NelderMead
extends java.lang.Object
```
Nelder-Mead original code copyright 2017 by Matteo Maggioni under the MIT Licence. Ported from C to Java by William Gandler

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`private class`	`NelderMead.param_t`
`class`	`NelderMead.point_t`
`private class`	`NelderMead.pointComparator`
`private class`	`NelderMead.simplex_t`

Field Summary

Fields
Modifier and Type	Field	Description
`private int`	`ackleyNum`
`private double`	`CHI`
`private int`	`costNum`
`private double`	`GAMMA`
`private int`	`max_eval`
`private int`	`max_iter`
`private int`	`n`
`private NelderMead.param_t`	`params`
`private double`	`RHO`
`private boolean`	`self_test`
`private double`	`SIGMA`
`private NelderMead.point_t`	`solution`
`private double`	`tolf`
`private double`	`tolx`
`private boolean`	`verbose`
`private double[]`	`x`

Constructor Summary

Constructors
Constructor	Description
`NelderMead(int n, double[] x, double tolx, double tolf, int max_iter, int max_eval, boolean verbose)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`private boolean`	`continue_minimization(NelderMead.simplex_t simplex, int eval_count, int iter_count)`
`private void`	`copy_point(int n, NelderMead.point_t src, NelderMead.point_t dst)`
`private void`	`cost_fun(int n, NelderMead.point_t point, NelderMead.param_t params)`
`abstract void`	`cost_function(int n, NelderMead.point_t point)`
`void`	`driver()`
`private void`	`get_centroid(NelderMead.simplex_t simplex, NelderMead.point_t centroid)`
`double`	`getSolValue()`
`double[]`	`getSolX()`
`private void`	`nelder_mead(NelderMead.point_t start, NelderMead.point_t solution)`
`private void`	`simplex_sort(NelderMead.simplex_t simplex)`
`private double`	`SQUARE(double x)`
`private void`	`swap_points(int n, NelderMead.point_t p1, NelderMead.point_t p2)`
`private void`	`update_point(NelderMead.simplex_t simplex, NelderMead.point_t centroid, double lambda, NelderMead.point_t point)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

RHO
```
private double RHO
```

CHI
```
private double CHI
```

GAMMA
```
private double GAMMA
```

SIGMA
```
private double SIGMA
```

n
```
private int n
```

x
```
private double[] x
```

tolx
```
private double tolx
```

tolf
```
private double tolf
```

max_iter
```
private int max_iter
```

max_eval
```
private int max_eval
```

verbose
```
private boolean verbose
```

self_test
```
private boolean self_test
```

ackleyNum
```
private final int ackleyNum
```
See Also:

Constant Field Values

costNum
```
private int costNum
```

params
```
private NelderMead.param_t params
```

solution
```
private NelderMead.point_t solution
```

Constructor Detail

NelderMead

public NelderMead(int n,
                  double[] x,
                  double tolx,
                  double tolf,
                  int max_iter,
                  int max_eval,
                  boolean verbose)

Method Detail

driver
```
public void driver()
```

getSolX
```
public double[] getSolX()
```

getSolValue
```
public double getSolValue()
```

nelder_mead

private void nelder_mead(NelderMead.point_t start,
                         NelderMead.point_t solution)

simplex_sort

private void simplex_sort(NelderMead.simplex_t simplex)

get_centroid

private void get_centroid(NelderMead.simplex_t simplex,
                          NelderMead.point_t centroid)

continue_minimization

private boolean continue_minimization(NelderMead.simplex_t simplex,
                                      int eval_count,
                                      int iter_count)

update_point

private void update_point(NelderMead.simplex_t simplex,
                          NelderMead.point_t centroid,
                          double lambda,
                          NelderMead.point_t point)

copy_point

private void copy_point(int n,
                        NelderMead.point_t src,
                        NelderMead.point_t dst)

swap_points

private void swap_points(int n,
                         NelderMead.point_t p1,
                         NelderMead.point_t p2)

SQUARE
```
private double SQUARE(double x)
```

cost_fun

private void cost_fun(int n,
                      NelderMead.point_t point,
                      NelderMead.param_t params)

cost_function

public abstract void cost_function(int n,
                                   NelderMead.point_t point)

Class NelderMead

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

RHO

CHI

GAMMA

SIGMA

n

x

tolx

tolf

max_iter

max_eval

verbose

self_test

ackleyNum

costNum

params

solution

Constructor Detail

NelderMead

Method Detail

driver

getSolX

getSolValue

nelder_mead

simplex_sort

get_centroid

continue_minimization

update_point

copy_point

swap_points

SQUARE

cost_fun

cost_function