LevenbergMarquardtOptimizer.InternalData

java.lang.Object
- org.apache.commons.math3.fitting.leastsquares.LevenbergMarquardtOptimizer.InternalData

Enclosing class:

LevenbergMarquardtOptimizer
```
private static class LevenbergMarquardtOptimizer.InternalData
extends java.lang.Object
```
Holds internal data. This structure was created so that all optimizer fields can be "final". Code should be further refactored in order to not pass around arguments that will modified in-place (cf. "work" arrays).

Field Summary

Fields
Modifier and Type	Field	Description
`private double[]`	`beta`	Coefficients of the Householder transforms vectors.
`private double[]`	`diagR`	Diagonal elements of the R matrix in the QR decomposition.
`private double[]`	`jacNorm`	Norms of the columns of the jacobian matrix.
`private int[]`	`permutation`	Columns permutation array.
`private int`	`rank`	Rank of the Jacobian matrix.
`private double[][]`	`weightedJacobian`	Weighted Jacobian.

Constructor Summary

Constructors
Constructor	Description
`InternalData(double[][] weightedJacobian, int[] permutation, int rank, double[] diagR, double[] jacNorm, double[] beta)`

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

- Field Detail
  - weightedJacobian
```
private final double[][] weightedJacobian
```
    Weighted Jacobian.
  - permutation
```
private final int[] permutation
```
    Columns permutation array.
  - rank
```
private final int rank
```
    Rank of the Jacobian matrix.
  - diagR
```
private final double[] diagR
```
    Diagonal elements of the R matrix in the QR decomposition.
  - jacNorm
```
private final double[] jacNorm
```
    Norms of the columns of the jacobian matrix.
  - beta
```
private final double[] beta
```
    Coefficients of the Householder transforms vectors.
- Constructor Detail
  - InternalData
```
InternalData(double[][] weightedJacobian,
             int[] permutation,
             int rank,
             double[] diagR,
             double[] jacNorm,
             double[] beta)
```
    Parameters:
    
    weightedJacobian - Weighted Jacobian.
    
    permutation - Columns permutation array.
    
    rank - Rank of the Jacobian matrix.
    
    diagR - Diagonal elements of the R matrix in the QR decomposition.
    
    jacNorm - Norms of the columns of the jacobian matrix.
    
    beta - Coefficients of the Householder transforms vectors.