Fits and subtracts or models the continuum in spectra. More...

#include <MSContinuumSubtractor.h>

Public Member Functions
	MSContinuumSubtractor (MeasurementSet &ms)
	Constructor.
MSContinuumSubtractor &	operator= (MSContinuumSubtractor &other)
	Assignment (only copies reference to MS, need to reset selection etc)
	~MSContinuumSubtractor ()
	Destructor.
void	setField (const String &field)
	Set the required field Ids.
void	setFields (const Vector< Int > &fieldIds)
void	setFitSpw (const String &fitspw)
	Set the channels to use in the fit.
void	setSubSpw (const String &subspw)
void	setDataDescriptionIds (const Vector< Int > &ddIds)
	Set the required spws (ddids)
void	setSolutionInterval (Float solInt)
	Set the solution interval in seconds, the value zero implies scan averaging.
void	setSolutionInterval (String solInt)
	Set the solution interval in seconds, the value zero implies scan averaging.
void	setOrder (Int order)
	Set the order of the fit (1=linear)
void	setMode (const String &mode)
	Set the processing mode: subtract, model or replace.
void	subtract ()
	Do the subtraction (or save the model)
Private Attributes
MeasurementSet *	ms_p
	Pointer to MS.
Vector< Int >	itsDDIds
	DataDescription Ids to process.
Vector< Int >	itsFieldIds
	Field Ids to process.
Matrix< Int >	itsFitChans
	Channels to use in fit.
Matrix< Int >	itsSubChans
	Channels to subtract from.
Float	itsSolInt
	Solution interval for fit.
Int	itsOrder
	Order of the fit.
String	itsMode
	Processing mode.
Int	nSpw_
	Number of spws.

Detailed Description

Fits and subtracts or models the continuum in spectra.

Intended use:

Public interface

Review Status

Date Reviewed:: yyyy/mm/dd

Prerequisite

MeasurementSet

Etymology

This class's main aim is to subtract the continuum from spectral line data.

Synopsis

Spectral line observations often contain continuum emission which is present in all channels (often with small slope across band). This class fits this continuum and subtracts it, replacing either the corrected data or the model data column.

Example

        MS inMS(fileName);
        MSContinuumSubtractor mssub(inMS);
        mssub.setDataDescriptionIds(ddIds);
        mssub.setFields(fieldIds);
        mssub.setSolutionInterval(10.0);
        mssub.setMode("subtract");
        mssub.subtract();

A MSContinuumSubtractor object is constructed and the continuum is subtracted with a 10.0s averaging time for the fit.

Motivation

This class replaces existing functionality at the glish level, in an attempt to speed up the continuum subtraction process.

Definition at line 83 of file MSContinuumSubtractor.h.

Constructor & Destructor Documentation

casa::MSContinuumSubtractor::MSContinuumSubtractor ( MeasurementSet & ms )

Constructor.

casa::MSContinuumSubtractor::~MSContinuumSubtractor ( )

Destructor.

Member Function Documentation

MSContinuumSubtractor& casa::MSContinuumSubtractor::operator= ( MSContinuumSubtractor & other )

Assignment (only copies reference to MS, need to reset selection etc)

void casa::MSContinuumSubtractor::setDataDescriptionIds ( const Vector< Int > & ddIds )

Set the required spws (ddids)

void casa::MSContinuumSubtractor::setField ( const String & field )

Set the required field Ids.

void casa::MSContinuumSubtractor::setFields ( const Vector< Int > & fieldIds )

void casa::MSContinuumSubtractor::setFitSpw ( const String & fitspw )

Set the channels to use in the fit.

void casa::MSContinuumSubtractor::setMode ( const String & mode )

Set the processing mode: subtract, model or replace.

void casa::MSContinuumSubtractor::setOrder ( Int order )

Set the order of the fit (1=linear)

void casa::MSContinuumSubtractor::setSolutionInterval ( Float solInt )

Set the solution interval in seconds, the value zero implies scan averaging.

void casa::MSContinuumSubtractor::setSolutionInterval ( String solInt )

Set the solution interval in seconds, the value zero implies scan averaging.

void casa::MSContinuumSubtractor::setSubSpw ( const String & subspw )

void casa::MSContinuumSubtractor::subtract ( )

Do the subtraction (or save the model)

Member Data Documentation

Vector<Int> casa::MSContinuumSubtractor::itsDDIds [private]

DataDescription Ids to process.

Definition at line 124 of file MSContinuumSubtractor.h.

Vector<Int> casa::MSContinuumSubtractor::itsFieldIds [private]

Field Ids to process.

Definition at line 126 of file MSContinuumSubtractor.h.

Matrix<Int> casa::MSContinuumSubtractor::itsFitChans [private]

Channels to use in fit.

Definition at line 128 of file MSContinuumSubtractor.h.

String casa::MSContinuumSubtractor::itsMode [private]

Processing mode.

Definition at line 136 of file MSContinuumSubtractor.h.

Int casa::MSContinuumSubtractor::itsOrder [private]

Order of the fit.

Definition at line 134 of file MSContinuumSubtractor.h.

Float casa::MSContinuumSubtractor::itsSolInt [private]

Solution interval for fit.

Definition at line 132 of file MSContinuumSubtractor.h.

Matrix<Int> casa::MSContinuumSubtractor::itsSubChans [private]

Channels to subtract from.

Definition at line 130 of file MSContinuumSubtractor.h.

MeasurementSet* casa::MSContinuumSubtractor::ms_p [private]

Pointer to MS.

Definition at line 122 of file MSContinuumSubtractor.h.

Int casa::MSContinuumSubtractor::nSpw_ [private]

Number of spws.

Definition at line 138 of file MSContinuumSubtractor.h.

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

code/synthesis/MSVis/MSContinuumSubtractor.h

Public Member Functions

Private Attributes