Generates set of axis aligned modes for non-zero element. More...

#include <mcal_trivial_ca.h>

Inheritance diagram for mcal_trivial_ca:

Public Member Functions
	mcal_trivial_ca ()
	Dflt ctor.
virtual	~mcal_trivial_ca ()
	Destructor.
virtual void	build_about_mean (mbl_data_wrapper< vnl_vector< double > > &data, const vnl_vector< double > &mean, vnl_matrix< double > &modes, vnl_vector< double > &mode_var)
	Compute modes of the supplied data relative to the supplied mean.
short	version_no () const
	Version number for I/O.
virtual vcl_string	is_a () const
	Name of the class.
virtual mcal_component_analyzer *	clone () const
	Create a copy on the heap and return base class pointer.
virtual void	print_summary (vcl_ostream &os) const
	Print class to os.
virtual void	b_write (vsl_b_ostream &bfs) const
	Save class to binary file stream.
virtual void	b_read (vsl_b_istream &bfs)
	Load class from binary file stream.
virtual void	config_from_stream (vcl_istream &is)
	Read initialisation settings from a stream.
void	compute_mean (mbl_data_wrapper< vnl_vector< double > > &data, vnl_vector< double > &mean)
	Compute the mean of the supplied data.
virtual void	build (mbl_data_wrapper< vnl_vector< double > > &data, vnl_vector< double > &mean, vnl_matrix< double > &modes, vnl_vector< double > &mode_var)
	Compute mean and modes from the supplied data.
virtual void	build_from_array (const vnl_vector< double > *data, int n, vnl_vector< double > &mean, vnl_matrix< double > &modes, vnl_vector< double > &mode_var)
	Build mean and modes from data in array data[0..n-1].
Static Public Member Functions
static vcl_auto_ptr < mcal_component_analyzer >	create_from_stream (vcl_istream &is)
	Create a concrete mcal_component_analyzer object, from a text specification.

Detailed Description

Generates set of axis aligned modes for non-zero element.

Given n-D input data, for each element which contains non-zero variance, generate a unit mode vector along relevant axis.

This is primarily used for testing, and trivial initialisations.

Definition at line 20 of file mcal_trivial_ca.h.

Constructor & Destructor Documentation

mcal_trivial_ca::mcal_trivial_ca ( )

Dflt ctor.

Definition at line 22 of file mcal_trivial_ca.cxx.

mcal_trivial_ca::~mcal_trivial_ca ( ) [virtual]

Destructor.

Definition at line 31 of file mcal_trivial_ca.cxx.

Member Function Documentation

void mcal_trivial_ca::b_read ( vsl_b_istream & bfs ) [virtual]

Load class from binary file stream.

Implements mcal_component_analyzer.

Definition at line 140 of file mcal_trivial_ca.cxx.

void mcal_trivial_ca::b_write ( vsl_b_ostream & bfs ) const [virtual]

Save class to binary file stream.

Implements mcal_component_analyzer.

Definition at line 131 of file mcal_trivial_ca.cxx.

void mcal_component_analyzer::build	(	mbl_data_wrapper< vnl_vector< double > > &	data,
		vnl_vector< double > &	mean,
		vnl_matrix< double > &	modes,
		vnl_vector< double > &	mode_var
	)		`[virtual, inherited]`

Compute mean and modes from the supplied data.

Model is x = mean + modes*b, where b is a vector of weights on each mode. mode_var[i] gives the variance of the data projected onto that mode. Default computes the mean, then calls build_about_mean

Computes the mean, then calls build_about_mean

Definition at line 41 of file mcal_component_analyzer.cxx.

void mcal_trivial_ca::build_about_mean	(	mbl_data_wrapper< vnl_vector< double > > &	data,
		const vnl_vector< double > &	mean,
		vnl_matrix< double > &	modes,
		vnl_vector< double > &	mode_var
	)		`[virtual]`

Compute modes of the supplied data relative to the supplied mean.

Model is x = mean + modes*b, where b is a vector of weights on each mode. mode_var[i] gives the variance of the data projected onto that mode.

Implements mcal_component_analyzer.

Definition at line 39 of file mcal_trivial_ca.cxx.

void mcal_component_analyzer::build_from_array	(	const vnl_vector< double > *	data,
		int	n,
		vnl_vector< double > &	mean,
		vnl_matrix< double > &	modes,
		vnl_vector< double > &	mode_var
	)		`[virtual, inherited]`