RFAUVBinner: flagging via UV binning. More...

#include <RFAUVBinner.h>

Inheritance diagram for casa::RFAUVBinner:

Public Member Functions
	RFAUVBinner (RFChunkStats &ch, const casacore::RecordInterface &parm)

virtual	~RFAUVBinner ()

virtual casacore::uInt	estimateMemoryUse ()
	This method is called before iterating over a chunk, to inquire the expected memory use. More...

virtual casacore::Bool	newChunk (casacore::Int &maxmem)
	Called before iterating over a chunk. More...

virtual void	endChunk ()
	Called once finished with a chunk. More...

virtual void	startData (bool verbose)
	Called before starting a data pass on a chunk. More...

virtual void	startDry (bool verbose)
	Called before starting a dry pass on a chunk. More...

virtual IterMode	iterTime (casacore::uInt it)
	Iteration methods for a data pass. More...

virtual IterMode	iterRow (casacore::uInt ir)
	iterRow() is called once per each row in the VisBuffer. More...

virtual IterMode	iterDry (casacore::uInt it)
	Iteration method for a dry pass. More...

virtual IterMode	endData ()
	Called after a pass is completed successfully (i.e., not stopped by start or iter methods). More...

virtual IterMode	endDry ()
	Called after a dry pass is complete. More...

virtual casacore::String	getDesc ()
	called to obtain a short description of this RFA More...

Public Member Functions inherited from casa::RFAFlagCubeBase
	RFAFlagCubeBase (RFChunkStats &ch, const casacore::RecordInterface &parm)

virtual	~RFAFlagCubeBase ()

virtual void	startFlag (bool verbose)
	Called before starting the fetch-flags pass. More...

virtual void	iterFlag (casacore::uInt it)
	Iteration method for a flag pass. More...

virtual casacore::String	getStats ()
	called (before endChunk()) to obtain a statistics report More...

virtual casacore::String	getID ()

Public Member Functions inherited from casa::RFABase
	RFABase (RFChunkStats &ch, const casacore::RecordInterface &parm)
	An agent is always constructed from a chunk stats accessor, and a record of parameters. More...

virtual	~RFABase ()
	Destructor. More...

virtual void	init ()
	This method is called after constructing the agent. More...

virtual void	endFlag ()
	Called after a flag pass is complete. More...

virtual void	endRows (casacore::uInt)
	Called at end of time chunk. More...

virtual void	printFlaggingReport ()

const casacore::String &	name ()
	returns the name of this RFA (set in myname) More...

casacore::Bool	isActive ()
	returns the active status More...

casacore::LogIO &	logSink ()
	accessor to a casacore::LogIO for this agent More...

virtual casacore::Record	getResult ()

virtual void	finalize ()

virtual void	initialize ()
	Initialize chunk. More...

virtual void	initializeIter (casacore::uInt)

virtual void	finalizeIter (casacore::uInt)

virtual void	setNAgent (casacore::uInt n)

virtual void	setOnlySelector (bool only_sel)

Public Member Functions inherited from casa::RFDataMapper
	RFDataMapper (const casacore::String &col, DDMapper *map)
	construct from a column and a DDMapper More...

	RFDataMapper (const casacore::Vector< casacore::String > &expr, const casacore::String &defcol="")
	construct from a column and an expression More...

	~RFDataMapper ()
	destructor More...

MapperType	type ()
	returns type of mapper More...

casacore::Double	getValueCycle ()
	If the value being mapped into is cyclic (i.e. More...

casacore::Double	getValueBase ()
	Returns base of a cyclic value (e.g. More...

casacore::Float	mapValue (casacore::uInt ich, casacore::uInt irow)
	gets a value from the DDMapper More...

casacore::Float	mapValue (casacore::uInt irow)
	gets a value from the row mapper More...

RFlagWord	corrMask (const VisibilityIterator &vi)
	uses mapper to compute a correlations mask More...

void	setVisBuffer (VisBuffer &vb)
	point the datamapper at a visbuffer - called for every new buffer More...

casacore::String	description () const
	returns description More...

casacore::String	descExpression () const
	returns description of expression More...

Static Public Member Functions
static const casacore::RecordInterface &	getDefaults ()

Static Public Member Functions inherited from casa::RFAFlagCubeBase
static const casacore::RecordInterface &	getDefaults ()

Static Public Member Functions inherited from casa::RFABase
static void	setIndexingBase (casacore::uInt base)
	static method for setting the indexing base for agent arguments More...

Protected Member Functions
casacore::IPosition	computeBin (casacore::Float uv, casacore::Float y, casacore::uInt ich)

Protected Member Functions inherited from casa::RFABase
casacore::uInt	num (StatEnums which)

RFlagWord	corrMask ()

Protected Member Functions inherited from casa::RFDataMapper
casacore::Float	dummyRowMapper (casacore::uInt)
	various row mappers More...

casacore::Float	U_RowMapper (casacore::uInt)

casacore::Float	V_RowMapper (casacore::uInt)

casacore::Float	W_RowMapper (casacore::uInt)

casacore::Float	AbsU_RowMapper (casacore::uInt)

casacore::Float	AbsV_RowMapper (casacore::uInt)

casacore::Float	AbsW_RowMapper (casacore::uInt)

casacore::Float	UVD_RowMapper (casacore::uInt)

casacore::Float	UVA_RowMapper (casacore::uInt)

casacore::Float	HA_RowMapper (casacore::uInt)

Protected Attributes
casacore::Double	threshold

casacore::uInt	min_population

casacore::uInt	nbin_y

casacore::uInt	nbin_uv

casacore::Bool	binned

casacore::Vector < casacore::RigidVector < casacore::Double, 3 > > *	puvw
	current UVW column More...

RFFloatLattice	yvalue
	lattice of yvalues [NCH,NIFR,NTIME] More...

casacore::Matrix< casacore::Float >	uvdist
	matrix of UV distances [NIFR,NTIME] More...

casacore::Vector< casacore::Float >	ymin
	ranges and bin sizes More...

casacore::Vector< casacore::Float >	ymax

casacore::Vector< casacore::Float >	ybinsize

casacore::Vector< casacore::Float >	uvmin
	for UV, we have individual ranges/bins per each channel More...

casacore::Vector< casacore::Float >	uvmax

casacore::Vector< casacore::Float >	uvbinsize

casacore::Cube< casacore::Int >	bincounts
	bin counts More...

casacore::Vector< casacore::Int >	totcounts

Protected Attributes inherited from casa::RFAFlagCubeBase
RFlagWord	corrmask
	mask of active correlations. More...

RFFlagCube	flag
	flag cube lattice More...

Protected Attributes inherited from casa::RFABase
casacore::uInt	nAgent

RFChunkStats &	chunk

casacore::Record	params

casacore::String	myname

bool	only_selector

RFlagWord	corrmask
	Bit mask of correlations which are used & flagged by this RFA. More...

casacore::Bool	active
	flag: agent is active for this chunk (set in newChunk) More...

casacore::LogIO	os

Protected Attributes inherited from casa::RFDataMapper
casacore::String	expr_desc

casacore::String	desc

DDMapper *	ddm

RowMapperFunc	rowmapper

casacore::Cube < casacore::Complex > *	pviscube

casacore::Vector < casacore::RigidVector < casacore::Double, 3 > > *	puvw

CubeMapperFunc	cubemap

MapperType	mytype

casacore::Double	full_cycle

casacore::Double	cycle_base

casacore::Double	sin_dec
	required by the HA mapper - sin(declination) of phase center; More...

Additional Inherited Members
Public Types inherited from casa::RFABase
enum	IterMode { STOP, DRY, DATA, CONT }
	iteration modes More...

Public Types inherited from casa::FlaggerEnums
enum	StatEnums { POLZN, POL, CORR, CHAN, IFR, TIME, ROW, ANT, FEED, FEEDCORR, NONE, Num_StatEnums }

enum	PreFlagPolicy { FL_HONOR, FL_IGNORE, FL_RESET }

Public Types inherited from casa::RFDataMapper
enum	MapperType { MAPROW, MAPCORR }
	type of data mapper: row or individual correlations More...

typedef casacore::Cube < casacore::Complex > (	CubeMapperFunc )(VisBuffer &)
	a cube mapper function maps a visbuffer to a data cube. More...

Static Protected Member Functions inherited from casa::RFABase
static casacore::uInt	indexingBase ()
	global flag indicates that Glish (1-based) indexing is in use for agent arguments More...

Static Protected Member Functions inherited from casa::RFDataMapper
static CubeMapperFunc	getCubeMapper (const casacore::String &col, casacore::Bool throw_excp=false)
	static helper function to interpret constructor parameters into a cube mapper More...

Detailed Description

RFAUVBinner: flagging via UV binning.

Intended use:

Internal

Prerequisite

RFDataMapper
RFFlagCubeBase
RFCubeLattice

Synopsis

To Do

make UV-distance matrix static, to share between multiple instances
collect population statistics across all channels
3D bins (ampl-UVdist-channel)?
think how to solve "encroaching" problem to achieve a better probability distribution. Perhaps two sets of staggered bins, and for each point use the count of the bigger bin?

Definition at line 66 of file RFAUVBinner.h.

Constructor & Destructor Documentation

casa::RFAUVBinner::RFAUVBinner	(	RFChunkStats &	ch,
		const casacore::RecordInterface &	parm
	)

virtual casa::RFAUVBinner::~RFAUVBinner ( )

inlinevirtual

Definition at line 70 of file RFAUVBinner.h.

Member Function Documentation

casacore::IPosition casa::RFAUVBinner::computeBin	(	casacore::Float	uv,
		casacore::Float	y,
		casacore::uInt	ich
	)

protected

virtual void casa::RFAUVBinner::endChunk ( )

virtual

Called once finished with a chunk.

Reimplemented from casa::RFAFlagCubeBase.

virtual IterMode casa::RFAUVBinner::endData ( )

virtual

Called after a pass is completed successfully (i.e., not stopped by start or iter methods).

Return value: STOP to stop, DATA for another data pass, DRY for another dry pass.

Reimplemented from casa::RFAFlagCubeBase.

virtual IterMode casa::RFAUVBinner::endDry ( )

virtual

Called after a dry pass is complete.

Reimplemented from casa::RFAFlagCubeBase.

virtual casacore::uInt casa::RFAUVBinner::estimateMemoryUse ( )

virtual

This method is called before iterating over a chunk, to inquire the expected memory use.

Should return the max desired memory footprint, in MB. Available physical memory is divided between agents in proportion to their requests.

Reimplemented from casa::RFAFlagCubeBase.

static const casacore::RecordInterface& casa::RFAUVBinner::getDefaults ( )

static

virtual casacore::String casa::RFAUVBinner::getDesc ( )

virtual

called to obtain a short description of this RFA

Reimplemented from casa::RFAFlagCubeBase.

virtual IterMode casa::RFAUVBinner::iterDry ( casacore::uInt )

virtual

Iteration method for a dry pass.

Called once per each time slot. Return value: STOP to finish iterating, CONT/DRY to continue, or DATA to cancel the dry pass and request another data pass.

Reimplemented from casa::RFAFlagCubeBase.

virtual IterMode casa::RFAUVBinner::iterRow ( casacore::uInt )

virtual

iterRow() is called once per each row in the VisBuffer.

Iterating over rows is perhaps preferrable in terms of performance, at least for data iterations.

Reimplemented from casa::RFABase.

virtual IterMode casa::RFAUVBinner::iterTime ( casacore::uInt )

virtual

Iteration methods for a data pass.

Either or both may be implemented. iterTime() is called once for each new VisBuffer (= new time slot) Return value: STOP to finish iterating, CONT/DATA to continue, or DRY to cancel the data pass and request a dry pass.

Reimplemented from casa::RFAFlagCubeBase.

virtual casacore::Bool casa::RFAUVBinner::newChunk ( casacore::Int & )

virtual

Called before iterating over a chunk.

Returns true if agent will process this chunk, or false if this the agent is unable to process it. (this can happen if, e.g., the requisite correlations are not present). The casacore::Int & maxmem argument is the number of MB memory which is still available in the memory pool. The agent class should plan its memory use accordingly, and subtract its expected memory use from maxmem. In effect, the agent "reserves" some amount of memory. This is used by RedFlagger to contain the total memory footprint. Note that only a rough reckoning is sufficient, so only bother estimating the biggest data structures. See implementations in RFADiffBase and RFATimeMedian for good examples. nAgent is the total number of agents.

Reimplemented from casa::RFAFlagCubeBase.

virtual void casa::RFAUVBinner::startData ( bool )

virtual

Called before starting a data pass on a chunk.

Reimplemented from casa::RFAFlagCubeBase.

virtual void casa::RFAUVBinner::startDry ( bool )

virtual

Called before starting a dry pass on a chunk.

Reimplemented from casa::RFAFlagCubeBase.