Pulsar::ProfilePCA Class Reference

Examines profile shape variation with principal components analysis. More...

#include <ProfilePCA.h>

Inheritance diagram for Pulsar::ProfilePCA:

Public Member Functions
	ProfilePCA ()
	Default constructor.

	~ProfilePCA ()
	Destructor.

void	set_nharm_pca (unsigned nharm)
	Set the number of harmonics to use for PCA.

void	set_nharm_cov (unsigned nharm)
	Set the number of harmonics store in cov matrix.

unsigned	get_nharm_pca ()
	Get the number of harmonics currently in use.

unsigned	get_nharm_cov ()
	Get the number of harmonics currently stored.

void	reset ()
	Reset sums to zero.

void	add_Profile (const Profile *p)
	Adds the given Profile to the analysis.

void	add_Integration (const Integration *i)
	Adds all Profiles in the given Integration to the analysis.

void	compute ()
	Compute principal components.

double	get_cov_value (unsigned i, unsigned j)
	Return i,j cov matrix entry.

double	get_pc_value (unsigned i)
	Return i-th largest PC value (eigenvalue).

Profile *	get_pc_vector (int i, unsigned nbin)
	Return i-th largest PC vector (eigenvector) as Profile.

std::vector< double >	decompose (const Profile *p, unsigned n_pc)
	Decompose given Profile using first n_pc PCs.

void	unload (const std::string &filename)
	Unload the PCA results to a file.

Public Member Functions inherited from Reference::Able
	Able (const Able &)

Able &	operator= (const Able &)

unsigned	get_reference_count () const

Public Member Functions inherited from Reference::HeapTracked
	HeapTracked (const HeapTracked &)

HeapTracked &	operator= (const HeapTracked &)

bool	__is_on_heap () const

Static Public Member Functions
static ProfilePCA *	load (const std::string &filename)
	Load PCA results from a file.

Static Public Member Functions inherited from Reference::Able
static size_t	get_instance_count ()

Static Public Member Functions inherited from Reference::HeapTracked
static void *	operator new (size_t size, void *ptr=0)

static void	operator delete (void location, void ptr)

static void	operator delete (void *location)

static size_t	get_heap_queue_size ()

Protected Attributes
unsigned	nharm_cov
	Number of harmonics to store.

unsigned	nharm_pca
	Number of harmonics to store.

double *	cov
	Current covariance matrix.

double *	mean
	Current mean profile.

unsigned	nprof
	Total number of profiles added.

double	wt_sum
	Sum of weights.

double	wt2_sum
	Sum of squared weights.

std::vector< double >	pc_values
	Principal component values (eigenvalues)

double *	pc_vectors
	Principal component vectors (eigenvectors)

Additional Inherited Members
Protected Member Functions inherited from Reference::Able
Handle *	__reference (bool active) const

void	__dereference (bool auto_delete=true) const

Detailed Description

Examines profile shape variation with principal components analysis.

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