LOWESS (locally weighted scatterplot smoothing). More...

#include <OpenMS/FILTERING/SMOOTHING/LowessSmoothing.h>

Inheritance diagram for LowessSmoothing:

Public Types
typedef std::vector< double >	DoubleVector

Public Member Functions
	LowessSmoothing ()
	Default constructor. More...

	~LowessSmoothing () override
	Destructor. More...

void	smoothData (const DoubleVector &, const DoubleVector &, DoubleVector &)
	Smoothing method that receives x and y coordinates (e.g., RT and intensities) and computes smoothed intensities. More...

Public Member Functions inherited from DefaultParamHandler
	DefaultParamHandler (const String &name)
	Constructor with name that is displayed in error messages. More...

	DefaultParamHandler (const DefaultParamHandler &rhs)
	Copy constructor. More...

virtual	~DefaultParamHandler ()
	Destructor. More...

virtual DefaultParamHandler &	operator= (const DefaultParamHandler &rhs)
	Assignment operator. More...

virtual bool	operator== (const DefaultParamHandler &rhs) const
	Equality operator. More...

void	setParameters (const Param &param)
	Sets the parameters. More...

const Param &	getParameters () const
	Non-mutable access to the parameters. More...

const Param &	getDefaults () const
	Non-mutable access to the default parameters. More...

const String &	getName () const
	Non-mutable access to the name. More...

void	setName (const String &name)
	Mutable access to the name. More...

const std::vector< String > &	getSubsections () const
	Non-mutable access to the registered subsections. More...

Protected Member Functions
void	updateMembers_ () override
	This method is used to update extra member variables at the end of the setParameters() method. More...

Protected Member Functions inherited from DefaultParamHandler
void	defaultsToParam_ ()
	Updates the parameters after the defaults have been set in the constructor. More...

Private Member Functions
double	tricube_ (double, double)

Private Attributes
double	window_size_

Additional Inherited Members
Protected Attributes inherited from DefaultParamHandler
Param	param_
	Container for current parameters. More...

Param	defaults_
	Container for default parameters. This member should be filled in the constructor of derived classes! More...

std::vector< String >	subsections_
	Container for registered subsections. This member should be filled in the constructor of derived classes! More...

String	error_name_
	Name that is displayed in error messages during the parameter checking. More...

bool	check_defaults_
	If this member is set to false no checking if parameters in done;. More...

bool	warn_empty_defaults_
	If this member is set to false no warning is emitted when defaults are empty;. More...

Detailed Description

LOWESS (locally weighted scatterplot smoothing).

A smoothing technique that a quadratic model to localized subsets of the data, point by point.

This is particularly useful for smoothing intensities in spectra or chromatograms. In this case, the window size for the smoothing should be set proportional to the peak width (see LowessSmoothing parameters).

Note that this should work best for few datapoints that have strong non-linear behavior. For large datasets with mostly linear behavior, use FastLowessSmoothing

Parameters of this class are:

Name	Type	Default	Restrictions	Description
window_size	int	10		The number of peaks to be included for local fitting in one window.

Note:

If a section name is documented, the documentation is displayed as tooltip.
Advanced parameter names are italic.

Member Typedef Documentation

◆ DoubleVector

typedef std::vector<double> DoubleVector

Constructor & Destructor Documentation

◆ LowessSmoothing()

LowessSmoothing ( )

Default constructor.

◆ ~LowessSmoothing()

~LowessSmoothing ( )

override

Destructor.

Member Function Documentation

◆ smoothData()

void smoothData	(	const DoubleVector &	,
		const DoubleVector &	,
		DoubleVector &
	)

Smoothing method that receives x and y coordinates (e.g., RT and intensities) and computes smoothed intensities.

◆ tricube_()

double tricube_	(	double	,
		double
	)

private

◆ updateMembers_()

void updateMembers_ ( )

overrideprotectedvirtual

This method is used to update extra member variables at the end of the setParameters() method.

Also call it at the end of the derived classes' copy constructor and assignment operator.

The default implementation is empty.

Reimplemented from DefaultParamHandler.

Member Data Documentation

◆ window_size_

double window_size_

private

Public Types

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members