fact.features.muon

Class GaussianFit.GaussianNegLogLikelihood

java.lang.Object

fact.features.muon.GaussianFit.GaussianNegLogLikelihood

All Implemented Interfaces:

org.apache.commons.math3.analysis.MultivariateFunction

Enclosing class:

GaussianFit

public class GaussianFit.GaussianNegLogLikelihood
extends Object
implements org.apache.commons.math3.analysis.MultivariateFunction

Constructor Summary

Constructors

Constructor and Description
GaussianNegLogLikelihood(double[] photoncharge, PixelSet pixelSet, double[] pixel_x, double[] pixel_y)

Method Summary

Modifier and Type	Method and Description
double	value(double[] point)

Methods inherited from class java.lang.Object

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

Constructor Detail

GaussianNegLogLikelihood

public GaussianNegLogLikelihood(double[] photoncharge,
                                PixelSet pixelSet,
                                double[] pixel_x,
                                double[] pixel_y)

Parameters:

photoncharge - double array containing the photoncharge for each pixel

pixelSet - int array containing all pixel chids for the pixel that survived cleaning

pixel_x - double array containing the x coordinates for all pixel

pixel_y - double array containing the y coordinates for all pixel

Method Detail

value

public double value(double[] point)

Specified by:

value in interface org.apache.commons.math3.analysis.MultivariateFunction

Parameters:

point - a double array with length 4 containing r, x, y, sigma in this order

Returns:

the negative log likelihood at this point for the given data