Selects Size equally spaced samples from the training data. More...

Detailed Description

Selects Size equally spaced samples from the training data.

Equally spaced in this context means not spaced in a state space sense. Instead, the index set resulting from concatenation of ALL trajectories available will be sampled over Size linearly equidistant indices. This way, all trajectories are treated as if it was one big one.

Author: Daniel Wirtz

Date: 2011-04-12

Change in 0.5:: (Daniel Wirtz, 2011-08-4) Changed the behaviour of this class to adopt to the new ATrajectoryData iterface. The sampling is done as before, treating all trajectories as if they were contained in one big array.

New in 0.4:

(Daniel Wirtz, 2011-05-06)

Added this class to Property classes and levels.
Implemented ICloneable interface.

New in 0.3:: (Daniel Wirtz, 2011-04-12) Added this class to allow for homogeneous training data selection.

This class is part of the framework

KerMor - Model Order Reduction using Kernels

Homepage http://www.morepas.org/software/index.html
Documentation http://www.morepas.org/software/kermor/index.html
License KerMor license conditions

Definition at line 19 of file LinspaceSelector.m.

Public Member Functions
	LinspaceSelector ()

function copy =	clone ()

Public Member Functions inherited from data.selection.ASelector
	ASelector ()

function data.ApproxTrainData atd =	selectTrainingData (model)
	Performs the selection procedure. More...

Public Member Functions inherited from KerMorObject
	KerMorObject ()
	Constructs a new KerMor object. More...

function	display ()
	disp(object2str(this)); More...

function bool =	eq (B)
	Checks equality of two KerMor objects. More...

function bool =	ne (B)
	Checks if two KerMorObjects are different. More...

function cn =	getClassName ()
	Returns the simple class name of this object without packages. More...

Public Member Functions inherited from DPCMObject
	DPCMObject ()
	Creates a new DPCM object. More...

	DPCMObject ()

Public Member Functions inherited from ICloneable
virtual function copy =	clone (target)
	The interface method with returns a copy of the current class instance. More...

Static Public Member Functions
static function res =	test_LinSpaceSelector ()

Public Attributes
	Size = Inf
	The (maximum) number of elements to take. More...

	MaxMemPerc = .4

Public Attributes inherited from data.selection.ASelector
logical	EnsureUniqueData = true
	Flag to enable automatic "uniqueification" if selected training data. Uniqueness is determined by the state space samples xi; if any xi is included twice or more, it is discarded along with the fxi, ti, mui data of the replicates (independent of whether they are equal, too) More...

Public Attributes inherited from DPCMObject
	WorkspaceVariableName = ""
	The workspace variable name of this class. Optional. More...

	ID = "[]"
	An ID that allows to uniquely identify this DPCMObject (at least within the current MatLab session/context). More...

	PropertiesChanged = "[]"
	The Dictionary containing all the property settings as key/value pairs. More...

Public Attributes inherited from handle
	addlistener
	Creates a listener for the specified event and assigns a callback function to execute when the event occurs. More...

	notify
	Broadcast a notice that a specific event is occurring on a specified handle object or array of handle objects. More...

	delete
	Handle object destructor method that is called when the object's lifecycle ends. More...

	disp
	Handle object disp method which is called by the display method. See the MATLAB disp function. More...

	display
	Handle object display method called when MATLAB software interprets an expression returning a handle object that is not terminated by a semicolon. See the MATLAB display function. More...

	findobj
	Finds objects matching the specified conditions from the input array of handle objects. More...

	findprop
	Returns a meta.property objects associated with the specified property name. More...

	fields
	Returns a cell array of string containing the names of public properties. More...

	fieldnames
	Returns a cell array of string containing the names of public properties. See the MATLAB fieldnames function. More...

	isvalid
	Returns a logical array in which elements are true if the corresponding elements in the input array are valid handles. This method is Sealed so you cannot override it in a handle subclass. More...

	eq
	Relational functions example. See details for more information. More...

	transpose
	Transposes the elements of the handle object array. More...

	permute
	Rearranges the dimensions of the handle object array. See the MATLAB permute function. More...

	reshape
	hanges the dimensions of the handle object array to the specified dimensions. See the MATLAB reshape function. More...

	sort
	ort the handle objects in any array in ascending or descending order. More...

Protected Member Functions
function [ matrix xi , rowvec ti , matrix mui , matrix fxi ] =	select (models.BaseFullModel model)
	Selects Size equally (index-)spaced samples from the training data. More...

Protected Member Functions inherited from KerMorObject
function	checkType (obj, type)
	Object typechecker. More...

Protected Member Functions inherited from DPCMObject
function	registerProps (varargin)
	Call this method at any class that defines DPCM observed properties. More...

function	registerProps (varargin)

Additional Inherited Members
Static Protected Member Functions inherited from DPCMObject
static function obj =	loadobj (obj, from)
	Re-register any registered change listeners! More...

static function obj =	loadobj (obj, from)

Constructor & Destructor Documentation

data.selection.LinspaceSelector.LinspaceSelector ( )

Definition at line 73 of file LinspaceSelector.m.

References DPCMObject.registerProps().

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Member Function Documentation

function copy = data.selection.LinspaceSelector.clone ( )

Definition at line 78 of file LinspaceSelector.m.

References Size.

function [ matrix xi , rowvec ti , matrix mui , matrix fxi ] = data.selection.LinspaceSelector.select ( models.BaseFullModel model )

protectedvirtual

Selects Size equally (index-)spaced samples from the training data.

Equally spaced in this context means with respect to the indices over the WHOLE trajectories summarized length, NOT to the spatial distances between the training samples.

Parameters

model The full model with the training data

Return values

xi	The selected \(x_i = x(t_i)\) training data
ti	The selected training times \(t_i\)
mui	The selected parameter samples \(\mu_i\) with which the states \(x_i\) have been reached
fxi	The \(f(x_i,t_i,\mu_i)\) evaluations. Empty if not computed yet.

Required fields of model:

Note: This method has the MATLAB method attribute Sealed set to true. It cannot be overwritten.; matlab documentation of method attributes.

Implements data.selection.ASelector.

Definition at line 99 of file LinspaceSelector.m.

References models.BaseFullModel.Data, data.ATrajectoryData.getNumTrajectories(), k, Size, models.BaseModel.Times, and data.ModelData.TrajectoryData.

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static function res = data.selection.LinspaceSelector.test_LinSpaceSelector ( )

static

Definition at line 197 of file LinspaceSelector.m.

Member Data Documentation

data.selection.LinspaceSelector.MaxMemPerc = .4

Definition at line 67 of file LinspaceSelector.m.

data.selection.LinspaceSelector.Size = Inf

The (maximum) number of elements to take.

Property class critical:: The amount of approximation training data to take.

Default: \(\infty\)

Note: This property has the MATLAB attribute SetObservable set to true.; Matlab documentation of property attributes.; This property has custom functionality when its value is changed.

Definition at line 52 of file LinspaceSelector.m.

Referenced by clone(), and select().

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

core/+data/+selection/LinspaceSelector.m

Detailed Description

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation