Gaussian2DFixedRadius (Fiji Javadocs 0-SNAPSHOT API)

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java.lang.Object
- fiji.plugin.trackmate.action.fit.Gaussian2DFixedRadius

All Implemented Interfaces:

FitFunction
```
public class Gaussian2DFixedRadius
extends Object
implements FitFunction
```
A n-dimensional Gaussian peak function, representing an elliptical Gaussian, with axis constrained to be aligned with the main axis.
This fitting target function is defined over dimension n, by the following 4 parameters:
1. x0
2. y0
3. A0
with
```
 f(x) = A × exp( - S )
 
```
and
```
 S = A0 * exp( -( x - x0 ) ^ 2 / ( 2 * sigmaxy ^ 2 ) - ( y - y0 ) ^ 2 / ( 2 * sigmaxy ^ 2 ) )
 
```
Author:

Jean-Yves Tinevez

Constructor Summary

Constructors
Constructor and Description

Gaussian2DFixedRadius()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`double`	`grad(double[] pos, double[] a, int ak)`
`double`	`hessian(double[] pos, double[] a, int r, int c)`
`double`	`val(double[] x, double[] a)`

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

Constructor Detail
- Gaussian2DFixedRadius
```
public Gaussian2DFixedRadius()
```

Method Detail

val

public double val(double[] x,
                  double[] a)

Specified by:: val in interface FitFunction

grad

public double grad(double[] pos,
                   double[] a,
                   int ak)

Specified by:: grad in interface FitFunction

hessian

public double hessian(double[] pos,
                      double[] a,
                      int r,
                      int c)

Specified by:: hessian in interface FitFunction

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