Parameters for sum of parameterized Functions. More...

#include <CompoundParam.h>

Inheritance diagram for casacore::CompoundParam< T >:

Public Member Functions
	CompoundParam ()
	The default constructor – no functions, no parameters, nothing, the function operator returns a 0. More...

	CompoundParam (const CompoundParam< T > &other)
	Make this object a (deep) copy of other. More...

	CompoundParam (const CompoundParam< T > &other, Bool)

template<class W >
	CompoundParam (const CompoundParam< W > &other)

template<class W >
	CompoundParam (const CompoundParam< W > &other, Bool)

CompoundParam< T > &	operator= (const CompoundParam< T > &other)

virtual	~CompoundParam ()

virtual const String &	name () const
	Give name of function. More...

uInt	addFunction (const Function< T > &newFunction)
	Add a function to the sum. More...

uInt	nFunctions () const
	Return the number of functions in the sum. More...

const Function< T > &	function (uInt which) const
	Return a reference to a specific Function. More...

uInt	parameterOffset (uInt which) const
	Get the offset in function parameterlist for function which. More...

uInt	parameterFunction (uInt which) const
	Get the function number belonging to parameter list element which. More...

uInt	parameterLocation (uInt which) const
	Return locpar. More...

virtual uInt	ndim () const
	Returns the dimension of functions in the linear combination. More...

Public Member Functions inherited from casacore::Function< T >
	Function ()
	Constructors. More...

	Function (const uInt n)

	Function (const Vector< T > &in)

	Function (const FunctionParam< T > &other)

	Function (const Function< W, X > &other)

	Function (const Function< T, U > &other)

virtual	~Function ()
	Destructor. More...

uInt	nparameters () const
	Returns the number of parameters. More...

virtual U	eval (FunctionArg x) const =0
	Evaluate the function object. More...

T &	operator[] (const uInt n)
	Manipulate the nth parameter (0-based) with no index check. More...

const T &	operator[] (const uInt n) const

virtual U	operator() () const
	Evaluate this function object at `x`or at `x, y`. More...

virtual U	operator() (const ArgType &x) const

virtual U	operator() (const Vector< ArgType > &x) const

virtual U	operator() (FunctionArg x) const

virtual U	operator() (const ArgType &x, const ArgType &y) const

virtual U	operator() (const ArgType &x, const ArgType &y, const ArgType &z) const

Bool &	mask (const uInt n)
	Manipulate the mask associated with the nth parameter (e.g. More...

const Bool &	mask (const uInt n) const

const FunctionParam< T > &	parameters () const
	Return the parameter interface. More...

FunctionParam< T > &	parameters ()

const Vector< ArgType > &	argp () const
	Get `arg_p` and `parset_p`. More...

Bool	parsetp () const

void	lockParam ()
	Compiler cannot always find the correct 'const' version of parameter access. More...

void	unlockParam ()

virtual void	setMode (const RecordInterface &mode)
	get/set the function mode. More...

virtual void	getMode (RecordInterface &mode) const

virtual Bool	hasMode () const
	return True if the implementing function supports a mode. More...

ostream &	print (ostream &os) const
	Print the function (i.e. More...

virtual Function< T, U > *	clone () const =0
	Return a copy of this object from the heap. More...

virtual Function< typename FunctionTraits< T >::DiffType > *	cloneAD () const

virtual Function< typename FunctionTraits< T >::BaseType > *	cloneNonAD () const

Public Member Functions inherited from casacore::Functional< FunctionTraits< T >::ArgType, U >
virtual	~Functional ()
	Destructor. More...

virtual U	operator() (const FunctionTraits< T >::ArgType &x) const =0
	Map a Domain `x` into a Range `y` value. More...

Public Member Functions inherited from casacore::Functional< Vector< FunctionTraits< T >::ArgType >, U >
virtual	~Functional ()
	Destructor. More...

virtual U	operator() (const Vector< FunctionTraits< T >::ArgType > &x) const =0
	Map a Domain `x` into a Range `y` value. More...

Protected Attributes
PtrBlock< Function< T > * >	functionPtr_p
	Pointer to each added function. More...

Block< uInt >	paroff_p
	Index of offset for each function to its parameters in general list. More...

Block< uInt >	funpar_p
	Index of function belonging to parameter. More...

Block< uInt >	locpar_p
	Index of local parameter. More...

Protected Attributes inherited from casacore::Function< T >
FunctionParam< T >	param_p
	The parameters and masks. More...

Vector< ArgType >	arg_p
	Aid for non-contiguous argument storage. More...

Bool	parset_p
	Indicate parameter written. More...

Bool	locked_p
	Indicate that parameters are expected to be locked from changing. More...

Private Attributes
uInt	ndim_p
	Number of dimensions of underlying functions. More...

Additional Inherited Members
Public Types inherited from casacore::Function< T >
typedef FunctionTraits< T > ::ArgType	ArgType

typedef const ArgType *	FunctionArg

Detailed Description

template<class T>
class casacore::CompoundParam< T >

Parameters for sum of parameterized Functions.

Intended use:

Internal

Review Status

Reviewed By:: tcornwel
Date Reviewed:: 1996/02/22
Test programs:: tCompoundFunction

Prerequisite

Function

Synopsis

This class takes an arbitrary number of Function objects, and generates a new, single function object. The parameters of the compound object are the union of all the parameters in the input objects.

When CompoundFunction is evaluated, the result is the sum of all the individual function values.

Note that any Function object (including another Compound object) can be part of a compound object.

Example

Suppose for some reason we wanted the sum of x^2 plus a gaussian. We could form it as follows:

Polynomial<Float> x2(2);
x[2] = 1.0;                                     // x^2
Gaussian1D<Float> gauss(1.0, 0.0, 1.0);          // e^{-x^2}
CompoundParam<Float> sum;                        // sum == 0.0
sum.addFunction(x2);                               // sum == x^2
sum.addFunction(gauss);                            // sum == x^2+e^{-x^2}
sum(2.0);                                          // == 4 + e^-4
CompoundParam[0] = 2.0;                          // sum ==2x^2+e^{-x^2}
sum(2.0);                                          // == 8 + e^-4
// Set the height of the gaussian
sum[parameterOffset[1] + Gaussian1D<Float>::HEIGHT] = 2.5;

Template Type Argument Requirements (T)

T should have standard numerical operators and exp() function. Current implementation only tested for real types.
To obtain derivatives, the derivatives should be defined.

Thrown Exceptions

AipsError if dimensions of functions added different

Motivation

This class was created to allow a non-linear least squares fitter to fit a (potentially) arbitrary number of functions (typically gaussians).

To Do

Nothing I know of

Definition at line 101 of file CompoundParam.h.

Constructor & Destructor Documentation

template<class T>

casacore::CompoundParam< T >::CompoundParam ( )

The default constructor – no functions, no parameters, nothing, the function operator returns a 0.

template<class T>

casacore::CompoundParam< T >::CompoundParam ( const CompoundParam< T > & other )

Make this object a (deep) copy of other.

template<class T>

casacore::CompoundParam< T >::CompoundParam	(	const CompoundParam< T > &	other,
		Bool
	)

inline

Definition at line 111 of file CompoundParam.h.

template<class T>

template<class W >

casacore::CompoundParam< T >::CompoundParam ( const CompoundParam< W > & other )

inline

Definition at line 127 of file CompoundParam.h.

template<class T>

template<class W >

casacore::CompoundParam< T >::CompoundParam	(	const CompoundParam< W > &	other,
		Bool
	)

inline

Definition at line 143 of file CompoundParam.h.

template<class T>

virtual casacore::CompoundParam< T >::~CompoundParam ( )

virtual

Member Function Documentation

template<class T>

uInt casacore::CompoundParam< T >::addFunction ( const Function< T > & newFunction )

Add a function to the sum.

All functions must have the same ndim() as the first one. Returns the (zero relative) number of the function just added.

template<class T>

const Function<T>& casacore::CompoundParam< T >::function ( uInt which ) const

inline

Return a reference to a specific Function.

Definition at line 180 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::CompoundParam().

template<class T>

virtual const String& casacore::CompoundParam< T >::name ( ) const

inlinevirtual

Give name of function.

Reimplemented from casacore::Function< T >.

Definition at line 167 of file CompoundParam.h.

template<class T>

virtual uInt casacore::CompoundParam< T >::ndim ( ) const

inlinevirtual

Returns the dimension of functions in the linear combination.

Implements casacore::Function< T >.

Definition at line 198 of file CompoundParam.h.

template<class T>

uInt casacore::CompoundParam< T >::nFunctions ( ) const

inline

Return the number of functions in the sum.

Definition at line 176 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::function(), and casacore::CompoundParam< AutoDiff< T > >::parameterOffset().

template<class T>

CompoundParam<T>& casacore::CompoundParam< T >::operator= ( const CompoundParam< T > & other )

Referenced by casacore::CompoundFunction< casacore::AutoDiff< Double > >::operator=().

template<class T>

uInt casacore::CompoundParam< T >::parameterFunction ( uInt which ) const

inline

Get the function number belonging to parameter list element which.

Definition at line 188 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::CompoundParam().

template<class T>

uInt casacore::CompoundParam< T >::parameterLocation ( uInt which ) const

inline

Return locpar.

Definition at line 193 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::CompoundParam().

template<class T>

uInt casacore::CompoundParam< T >::parameterOffset ( uInt which ) const

inline

Get the offset in function parameterlist for function which.

Definition at line 185 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::CompoundParam().

Member Data Documentation

template<class T>

PtrBlock<Function<T> *> casacore::CompoundParam< T >::functionPtr_p

protected

Pointer to each added function.

Definition at line 208 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::CompoundParam(), casacore::CompoundParam< AutoDiff< T > >::function(), and casacore::CompoundParam< AutoDiff< T > >::nFunctions().

template<class T>

Block<uInt> casacore::CompoundParam< T >::funpar_p

protected

Index of function belonging to parameter.

Definition at line 212 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::CompoundParam(), and casacore::CompoundParam< AutoDiff< T > >::parameterFunction().

template<class T>

Block<uInt> casacore::CompoundParam< T >::locpar_p

protected

Index of local parameter.

Definition at line 214 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::CompoundParam(), and casacore::CompoundParam< AutoDiff< T > >::parameterLocation().

template<class T>

uInt casacore::CompoundParam< T >::ndim_p

private

Number of dimensions of underlying functions.

Definition at line 203 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::ndim().

template<class T>

Block<uInt> casacore::CompoundParam< T >::paroff_p

protected

Index of offset for each function to its parameters in general list.

Definition at line 210 of file CompoundParam.h.

Referenced by casacore::CompoundParam< AutoDiff< T > >::CompoundParam(), and casacore::CompoundParam< AutoDiff< T > >::parameterOffset().

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

casa/casacore/scimath/Functionals/CompoundParam.h

Public Member Functions

Protected Attributes

Private Attributes

Additional Inherited Members

Detailed Description

template<class T> class casacore::CompoundParam< T >

Intended use:

Review Status

Prerequisite

Synopsis

Example

Template Type Argument Requirements (T)

Thrown Exceptions

Motivation

To Do

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<class T>
class casacore::CompoundParam< T >