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NC::Fitter::ConstrainRange Class Reference

This class supports the function flipping in MinFinderSimple. More...

#include <NCFitter.h>

Inheritance diagram for NC::Fitter::ConstrainRange:

NC::Fitter::ICallableND List of all members.

Public Member Functions

 ConstrainRange (const ICallableND *f, int pn, double min, double max)
virtual double EvalAtEx (const CoordNDim &r, CoordNDim *ret) const
 Find the value of the function and return additional information.

Protected Attributes

const ICallableND * fFunc
int fParamNum
double fMin
double fMax

Detailed Description

This class supports the function flipping in MinFinderSimple.

I am aware that a similar penalizing scheme is implemented elsewhere. Hopefully this construct is only temporary.

Definition at line 40 of file NCFitter.h.

Constructor & Destructor Documentation

NC::Fitter::ConstrainRange::ConstrainRange (  const ICallableND *  f,
int  pn,
double  min,
double  max
)  [inline]
 

Definition at line 43 of file NCFitter.h.

References max, and min.

00044       : fFunc(f), fParamNum(pn), fMin(min), fMax(max){}

Member Function Documentation

double NC::Fitter::ConstrainRange::EvalAtEx (  const CoordNDim &  r,
CoordNDim *  ret
)  const [virtual]
 

Find the value of the function and return additional information.

Parameters:
r Coordinate at which to evaluate the function
[out] ret Return additional information. By convention, the true underlying coordinates evaluated.
Returns:
Value of the function at the point r
Implementations must be prepared for ret to be null

Todo:
Rename to just EvalAt

Implements NC::Fitter::ICallableND.

Definition at line 1403 of file NCFitter.cxx.

References NC::Fitter::CoordNDim, NC::Fitter::ICallableND::EvalAtEx(), and fFunc.

01404   {
01405     CoordNDim r2 = r;
01406     double pen = 0;
01407     if(r2[fParamNum] > fMax){
01408       // TODO - there should be some scaling based on the width,
01409       // but we happen to know all these variables are approx 0-1
01410       pen += 1e3*(r2[fParamNum]-fMax)*(r2[fParamNum]-fMax);
01411       r2[fParamNum] = fMax;
01412     }
01413     if(r2[fParamNum] < fMin){
01414       pen += 1e3*(r2[fParamNum]-fMin)*(r2[fParamNum]-fMin);
01415       r2[fParamNum] = fMin;
01416     }
01417     return fFunc->EvalAtEx(r2, ret)+pen;
01418   }

Member Data Documentation

const ICallableND* NC::Fitter::ConstrainRange::fFunc [protected]
 

Definition at line 47 of file NCFitter.h.

Referenced by EvalAtEx().

double NC::Fitter::ConstrainRange::fMax [protected]
 

Definition at line 49 of file NCFitter.h.

double NC::Fitter::ConstrainRange::fMin [protected]
 

Definition at line 49 of file NCFitter.h.

int NC::Fitter::ConstrainRange::fParamNum [protected]
 

Definition at line 48 of file NCFitter.h.

The documentation for this class was generated from the following files:
Generated on Mon Feb 15 11:10:39 2010 for loon by  doxygen 1.3.9.1