Muon::Fit2D Class Reference

A 2D linear regression calculator. More...

#include <Fit2D.h>

Collaboration diagram for Muon::Fit2D:

Classes
struct	LinStats
	A structure to hold linear fit statistics. More...
struct	Point
	A 2D point used in statistics and fit. More...
struct	SimpleStats

Public Types
typedef std::vector< Point * >	PointArray
	A vector of points. More...

Public Member Functions
	Fit2D ()
	Constructor. More...

Static Public Member Functions
static void	SimpleStatistics (const PointArray &points, SimpleStats &stats)
	Calculate simple statistics for the Y values of a set of points. More...
static void	fitLine (PointArray &points, double fExclChi2, bool bDump, LinStats &stats)
	Fit a straight line through the given points. More...
static void	fitPoint (PointArray &points, double fExclChi2, bool bDump, SimpleStats &stats)
	Estimate a new point from the given points. More...

Detailed Description

A 2D linear regression calculator.

The class accepts a list of X/ points and computes the least-squares straight line fit. It reports the intercept, slope and goodness of fit.

Points can be excluded from the calculation, and can also have a weight associated with them.

The class also computes simple statistics (meand, standard deviation) of the Y values.

Definition at line 28 of file Fit2D.h.

Member Typedef Documentation

PointArray

typedef std::vector<Point*> Muon::Fit2D::PointArray

A vector of points.

Definition at line 59 of file Fit2D.h.

Constructor & Destructor Documentation

Fit2D()

Muon::Fit2D::Fit2D ( )

inline

Constructor.

Definition at line 179 of file Fit2D.h.

    {
    }

Member Function Documentation

fitLine()

static void Muon::Fit2D::fitLine ( PointArray &  points, double  fExclChi2, bool  bDump, LinStats &  stats  )

static

Fit a straight line through the given points.

Parameters

points	The list of data points
fExclChi2	CHi2 value for excluding outliers
bDump	Write details to log
stats	[output] The fit results

fitPoint()

static void Muon::Fit2D::fitPoint ( PointArray &  points, double  fExclChi2, bool  bDump, SimpleStats &  stats  )

static

Estimate a new point from the given points.

Parameters

points	The list of data points
fExclChi2	CHi2 value for excluding outliers
bDump	Write details to log
stats	[output] The fit results

SimpleStatistics()

static void Muon::Fit2D::SimpleStatistics ( const PointArray &  points, SimpleStats &  stats  )

static

Calculate simple statistics for the Y values of a set of points.

Parameters

points	The list of data points
stats	[output] The statistics results

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The documentation for this class was generated from the following file:

• Fit2D.h