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Дата изменения: Unknown Дата индексирования: Mon Feb 14 21:33:31 2011 Кодировка: Поисковые слова: южная атлантическая аномалия |
Parameters for a linear combination of function objects. More...
#include <CombiParam.h>
Public Member Functions | |
| CombiParam () | |
| The default constructor -- no functions, no parameters, nothing, the function operator returns a 0. | |
| CombiParam (const CombiParam< T > &other) | |
| Make this object a (deep) copy of other. | |
| CombiParam (const CombiParam< T > &other, Bool) | |
| template<class W > | |
| CombiParam (const CombiParam< W > &other) | |
| template<class W > | |
| CombiParam (const CombiParam< W > &other, Bool) | |
| CombiParam< T > & | operator= (const CombiParam< T > &other) |
| Make this object a (deep) copy of other. | |
| virtual | ~CombiParam () |
| Destructor. | |
| virtual const String & | name () const |
| Give name of function. | |
| uInt | addFunction (const Function< T > &newFunction) |
| Add a function. | |
| uInt | nFunctions () const |
| Return the total number of functions. | |
| const Function< T > & | function (uInt which) const |
| Return a reference to a specific Function in the combination. | |
| const Function< T > & | function (uInt which) |
| virtual uInt | ndim () const |
| Returns the dimension of functions in the linear combination. | |
Protected Attributes | |
| uInt | ndim_p |
| Number of dimensions of underlying functions. | |
| PtrBlock< Function< T > * > | functionPtr_p |
| Pointer to each added function. | |
Parameters for a linear combination of function objects.
Internal
Given N function objects, the class describes a linear combination of the form:
f(x) = a(0)*f(0)(x) + a(1)*f(1)(x) + ... + a(N-1)*f(N-1)(x)
where a = {a(n)} are parameters. If the combi function is used in a functional fitting process (see LinearFit ) these parameters canm be solved for. In all aspects they behave as FunctionParam values.
Member functions are added with the addFunction() method.
In the following example a second order polynomial is built from 3 separate polynomials.
Polynomial<Double> constant(0);
Polynomial<Double> linear(1);
Polynomial<Double> square(2);
constant.setCoefficient(0, 1.0); // 1
linear.setCoefficient(1, 1.0); // x
square[2] = 1.0; // x^2
CombiParam<Double> combination;
// form function, e0 + e1*x + e2*x^2
combination.addFunction(constant);
combination.addFunction(linear);
combination.addFunction(square);
This class was created to allow specialization of the evaluation in a simple way.
Definition at line 111 of file CombiParam.h.
| casa::CombiParam< T >::CombiParam | ( | ) |
The default constructor -- no functions, no parameters, nothing, the function operator returns a 0.
| casa::CombiParam< T >::CombiParam | ( | const CombiParam< T > & | other | ) |
Make this object a (deep) copy of other.
| casa::CombiParam< T >::CombiParam | ( | const CombiParam< T > & | other, | |
| Bool | ||||
| ) | [inline] |
Definition at line 121 of file CombiParam.h.
| casa::CombiParam< T >::CombiParam | ( | const CombiParam< W > & | other | ) | [inline] |
Definition at line 129 of file CombiParam.h.
| casa::CombiParam< T >::CombiParam | ( | const CombiParam< W > & | other, | |
| Bool | ||||
| ) | [inline] |
Definition at line 137 of file CombiParam.h.
| virtual casa::CombiParam< T >::~CombiParam | ( | ) | [virtual] |
Destructor.
| uInt casa::CombiParam< T >::addFunction | ( | const Function< T > & | newFunction | ) |
Add a function.
All functions must have the same ndim() as the first one. Returns the (zero relative) number (i) of the function just added. The default initial parameter value (a(i)) is initialized to 1. The parameter mask is set True.
| const Function<T>& casa::CombiParam< T >::function | ( | uInt | which | ) | const [inline] |
Return a reference to a specific Function in the combination.
Definition at line 170 of file CombiParam.h.
Referenced by casa::CombiParam< AutoDiff< T > >::CombiParam().
| const Function<T>& casa::CombiParam< T >::function | ( | uInt | which | ) | [inline] |
Definition at line 173 of file CombiParam.h.
| virtual const String& casa::CombiParam< T >::name | ( | ) | const [inline, virtual] |
Give name of function.
Reimplemented from casa::Function< T >.
Definition at line 154 of file CombiParam.h.
| virtual uInt casa::CombiParam< T >::ndim | ( | ) | const [inline, virtual] |
Returns the dimension of functions in the linear combination.
Implements casa::Function< T >.
Definition at line 179 of file CombiParam.h.
| uInt casa::CombiParam< T >::nFunctions | ( | ) | const [inline] |
Return the total number of functions.
The number is equal to the number of functions that have been added.
Definition at line 166 of file CombiParam.h.
Referenced by casa::CombiParam< AutoDiff< T > >::CombiParam(), and casa::CombiParam< AutoDiff< T > >::function().
| CombiParam<T>& casa::CombiParam< T >::operator= | ( | const CombiParam< T > & | other | ) |
Make this object a (deep) copy of other.
PtrBlock<Function<T> *> casa::CombiParam< T >::functionPtr_p [protected] |
Pointer to each added function.
Definition at line 187 of file CombiParam.h.
Referenced by casa::CombiParam< AutoDiff< T > >::CombiParam(), and casa::CombiParam< AutoDiff< T > >::function().
uInt casa::CombiParam< T >::ndim_p [protected] |
Number of dimensions of underlying functions.
Definition at line 179 of file CombiParam.h.
1.7.1