org.hps.recon.tracking

Class ShaperLinearFitAlgorithm

java.lang.Object

org.hps.recon.tracking.ShaperLinearFitAlgorithm

All Implemented Interfaces:

org.freehep.math.minuit.FCNBase, ShaperFitAlgorithm

public class ShaperLinearFitAlgorithm
extends Object
implements ShaperFitAlgorithm, org.freehep.math.minuit.FCNBase

Fast fitter; currently only fits single hits. Uses Tp from ChannelConstants; fits values and errors for T0 and amplitude.

Author:

Sho Uemura

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double[]	amplitudeErrors
(package private) double[]	amplitudes
private int	channel
private boolean	debug
private int	firstFittedPulse
private int	firstUsedSample
private boolean	fitPedestal
private static Logger	minuitLoggger
private int	nFittedPulses
private int	nPulses
private int	nUsedSamples
private double	pedestal
private HpsSiSensor	sensor
private PulseShape	shape
private double[]	sigma
private double[]	y

Constructor Summary

Constructors

Constructor and Description
ShaperLinearFitAlgorithm(int nPulses)

Method Summary

Modifier and Type	Method and Description
private double	doLinFit(double[] times)
private org.freehep.math.minuit.FunctionMinimum	doRecursiveFit(double[] samples)
private double	evaluateMinimum(org.freehep.math.minuit.FunctionMinimum min)
Collection<ShapeFitParameters>	fitShape(org.lcsim.event.RawTrackerHit rth, PulseShape shape)
Collection<ShapeFitParameters>	fitShape(short[] samples)
boolean	fitsPedestal()
double	getPedestal()
private org.freehep.math.minuit.FunctionMinimum	minuitFit(double[] guess_t)
void	setDebug(boolean debug)
void	setFitPedestal(boolean fitPedestal)
double	valueOf(double[] times)

Methods inherited from class java.lang.Object

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

Field Detail

nPulses

private final int nPulses

amplitudes

final double[] amplitudes

amplitudeErrors

final double[] amplitudeErrors

pedestal

private double pedestal

sensor

private HpsSiSensor sensor

channel

private int channel

shape

private PulseShape shape

sigma

private final double[] sigma

y

private final double[] y

firstUsedSample

private int firstUsedSample

nUsedSamples

private int nUsedSamples

firstFittedPulse

private int firstFittedPulse

nFittedPulses

private int nFittedPulses

fitPedestal

private boolean fitPedestal

debug

private boolean debug

minuitLoggger

private static final Logger minuitLoggger

Constructor Detail

ShaperLinearFitAlgorithm

public ShaperLinearFitAlgorithm(int nPulses)

Method Detail

setDebug

public void setDebug(boolean debug)

Specified by:

setDebug in interface ShaperFitAlgorithm

setFitPedestal

public void setFitPedestal(boolean fitPedestal)

fitsPedestal

public boolean fitsPedestal()

getPedestal

public double getPedestal()

fitShape

public Collection<ShapeFitParameters> fitShape(org.lcsim.event.RawTrackerHit rth,
                                               PulseShape shape)

Specified by:

fitShape in interface ShaperFitAlgorithm

fitShape

public Collection<ShapeFitParameters> fitShape(short[] samples)

doRecursiveFit

private org.freehep.math.minuit.FunctionMinimum doRecursiveFit(double[] samples)

evaluateMinimum

private double evaluateMinimum(org.freehep.math.minuit.FunctionMinimum min)

minuitFit

private org.freehep.math.minuit.FunctionMinimum minuitFit(double[] guess_t)

doLinFit

private double doLinFit(double[] times)

valueOf

public double valueOf(double[] times)

Specified by:

valueOf in interface org.freehep.math.minuit.FCNBase