operations

Class LevenbergMarquardt

java.lang.Object

operations.LevenbergMarquardt

public abstract class LevenbergMarquardt
extends java.lang.Object

The Class LevenbergMarquardt.

Field Summary

Fields

Modifier and Type	Field and Description
int	iterations The iterations.
static int	maxIterations The max iterations.
double	precision The precision.
double	rSquared The r squared.
double	sumOfSquares The sum of squares.

Constructor Summary

Constructors

Constructor and Description
LevenbergMarquardt()

Method Summary

Modifier and Type	Method and Description
void	gaussJordan(double[][] left, double[][] right) Gauss jordan.
abstract void	getGradient(double[] x, double[] parameters, double[] dyda) Gets the gradient.
abstract double	getValue(double[] x, double[] parameters) Gets the value.
static void	main(java.lang.String[] args) The main method.
void	solve(double[][] x, double[] y, double[] s, int n, double[] parameters, boolean[] vary, double[] error, double lambda) Solve.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

maxIterations

public static int maxIterations

The max iterations.

iterations

public int iterations

The iterations.

sumOfSquares

public double sumOfSquares

The sum of squares.

precision

public double precision

The precision.

rSquared

public double rSquared

The r squared.

Constructor Detail

LevenbergMarquardt

public LevenbergMarquardt()

Method Detail

solve

public void solve(double[][] x,
                  double[] y,
                  double[] s,
                  int n,
                  double[] parameters,
                  boolean[] vary,
                  double[] error,
                  double lambda)

Solve.

Parameters:

x - the x

y - the y

s - the s

n - the n

parameters - the parameters

vary - the vary

error - the error

lambda - the lambda

gaussJordan

public void gaussJordan(double[][] left,
                        double[][] right)

Gauss jordan.

Parameters:

left - the left

right - the right

getValue

public abstract double getValue(double[] x,
                                double[] parameters)

Gets the value.

Parameters:

x - the x

parameters - the parameters

Returns:

the value

getGradient

public abstract void getGradient(double[] x,
                                 double[] parameters,
                                 double[] dyda)

Gets the gradient.

Parameters:

x - the x

parameters - the parameters

dyda - the dyda

main

public static void main(java.lang.String[] args)

The main method.

Parameters:

args - the arguments