FittingFunction (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

All Known Implementing Classes:

GaussianFittingFunction
```
public interface FittingFunction
```
Interface for a function used in Levenberg-Marquard-Fitting

Since:

0.2

Author:

Erich Schubert

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`FittingFunctionResult`	`eval(double x, double[] params)`	Compute value at position x as well as gradients for the parameters

- Method Detail
  - eval
```
FittingFunctionResult eval(double x,
                           double[] params)
```
    Compute value at position x as well as gradients for the parameters
    
    Parameters:
    
    x - Current coordinate
    
    params - Function parameters parameters
    
    Returns:
    
    Array consisting of y value and parameter gradients