G4DNARevertProbability Class Reference

#include <G4DNARevertProbability.hh>

Public Member Functions
	G4DNARevertProbability (double toleranceY)
	G4DNARevertProbability (double xmin, double xmax, double toleranceY)
bool	Propose (double proposedXValue, double proposedProba, double nextProba, double &returnedValue)
void	Reset ()
double	Revert (double probaForSearchedTime, std::function< double(double)> &funct)
void	SetBoundaries (double xmin, double xmax)
void	SetTolerance (double toleranceY)

Data Fields
double	fIncreasingCumulativeFunction
double	fToleranceProba
double	fXmax
double	fXmaxDef
double	fXmin
double	fXminDef

Detailed Description

Definition at line 43 of file G4DNARevertProbability.hh.

Constructor & Destructor Documentation

G4DNARevertProbability() [1/2]

G4DNARevertProbability::G4DNARevertProbability ( double  toleranceY )

inline

Definition at line 53 of file G4DNARevertProbability.hh.

                                            :
      fToleranceProba(toleranceY)
  {
    fXmax = 0.;
    fXmin = 0.;
    fXminDef = 0.;
    fXmaxDef = 0.;
    fIncreasingCumulativeFunction = 0.;
  }

References fIncreasingCumulativeFunction, fXmax, fXmaxDef, fXmin, and fXminDef.

G4DNARevertProbability() [2/2]

G4DNARevertProbability::G4DNARevertProbability ( double  xmin, double  xmax, double  toleranceY  )

inline

Definition at line 63 of file G4DNARevertProbability.hh.

                                                                      :
      fXmax(xmax), fXmin(xmin), fToleranceProba(toleranceY)
  {
    if(fXmax < fXmin)
    {
      double tmp = fXmin;
      fXmin = fXmax;
      fXmax = tmp;
    }
 
    fXminDef = fXmin;
    fXmaxDef = fXmax;
    fIncreasingCumulativeFunction = 0;
  }

References fIncreasingCumulativeFunction, fXmax, fXmaxDef, fXmin, and fXminDef.

Member Function Documentation

Propose()

bool G4DNARevertProbability::Propose ( double  proposedXValue, double  proposedProba, double  nextProba, double &  returnedValue  )

inline

Definition at line 104 of file G4DNARevertProbability.hh.

  {
    bool returnFlag = false;
 
    if(proposedProba < nextProba - fToleranceProba) // proba trop petite ==> augmente
    {
      if(fIncreasingCumulativeFunction > 0) // croissant
      {
        if(proposedXValue > fXmin) fXmin = proposedXValue;
      }
      else if(fIncreasingCumulativeFunction < 0) // decroissant
      {
        if(proposedXValue < fXmax) fXmax = proposedXValue;
      }
 
      returnedValue = (fXmax + fXmin) / 2.;
      returnFlag = false;
    }
    else if(proposedProba > nextProba + fToleranceProba) // proba trop grande
    {
      if(fIncreasingCumulativeFunction > 0)
      {
        if(proposedXValue < fXmax)
        {
          fXmax = proposedXValue;
        }
      }
      else if(fIncreasingCumulativeFunction < 0)
      {
        if(proposedXValue > fXmin)
        {
          fXmin = proposedXValue;
        }
      }
 
      returnedValue = (fXmax + fXmin) / 2.;
      returnFlag = false;
    }
    else
    {
      // Assuming search for next proba is increasing
      if(fIncreasingCumulativeFunction < 0)
      {
        fXmin = fXminDef;
        fXmax = proposedXValue;
      }
      else if(fIncreasingCumulativeFunction > 0)
      {
        fXmin = proposedXValue;
        fXmax = fXmaxDef;
      }
      returnFlag = true;
    }
 
    return returnFlag;
  }

References fIncreasingCumulativeFunction, fToleranceProba, fXmax, fXmaxDef, fXmin, and fXminDef.

Referenced by Revert().

Reset()

void G4DNARevertProbability::Reset ( )

inline

Definition at line 78 of file G4DNARevertProbability.hh.

  {
    fXmin = fXminDef;
    fXmax = fXmaxDef;
  }

References fXmax, fXmaxDef, fXmin, and fXminDef.

Referenced by Revert().

Revert()

double G4DNARevertProbability::Revert ( double  probaForSearchedTime, std::function< double(double)> &  funct  )

inline

Definition at line 168 of file G4DNARevertProbability.hh.

  {
    Reset();
    bool notFound = true;
    double proposedX;
    double x = fXmax;
 
    fIncreasingCumulativeFunction = (funct(fXmax) - funct(fXmin))
        / (fXmax - fXmin);
 
    while(notFound)
    {
      double newProba = funct(x);
 
      if(Propose(x, newProba, probaForSearchedTime, proposedX))
      {
        notFound = false;
      }
      else
      {
        if(x == proposedX)
        {
          return x;
//          G4cout << "BREAK : x= " << x << G4endl;
//          G4cout << "nextProba= " << probaForSearchedTime << G4endl;
//          G4cout << "newProba= " << newProba << G4endl;
//          abort();
        }
        x = proposedX;
      }
    }
    return x;
  }

References fIncreasingCumulativeFunction, fXmax, fXmin, Propose(), and Reset().

SetBoundaries()

void G4DNARevertProbability::SetBoundaries ( double  xmin, double  xmax  )

inline

Definition at line 84 of file G4DNARevertProbability.hh.

  {
    fXmax = xmax;
    fXmin = xmin;
    if(fXmax < fXmin)
    {
      double tmp = fXmin;
      fXmin = fXmax;
      fXmax = tmp;
    }
 
    fXminDef = fXmin;
    fXmaxDef = fXmax;
  }

References fXmax, fXmaxDef, fXmin, and fXminDef.

SetTolerance()

void G4DNARevertProbability::SetTolerance ( double  toleranceY )

inline

Definition at line 99 of file G4DNARevertProbability.hh.

  {
    fToleranceProba = toleranceY;
  }

References fToleranceProba, and G4INCL::RootFinder::anonymous_namespace{G4INCLRootFinder.cc}::toleranceY.

Field Documentation

fIncreasingCumulativeFunction

double G4DNARevertProbability::fIncreasingCumulativeFunction

Definition at line 51 of file G4DNARevertProbability.hh.

Referenced by G4DNARevertProbability(), Propose(), and Revert().

fToleranceProba

double G4DNARevertProbability::fToleranceProba

Definition at line 50 of file G4DNARevertProbability.hh.

Referenced by Propose(), and SetTolerance().

fXmax

double G4DNARevertProbability::fXmax

Definition at line 46 of file G4DNARevertProbability.hh.

Referenced by G4DNARevertProbability(), Propose(), Reset(), Revert(), and SetBoundaries().

fXmaxDef

double G4DNARevertProbability::fXmaxDef

Definition at line 48 of file G4DNARevertProbability.hh.

Referenced by G4DNARevertProbability(), Propose(), Reset(), and SetBoundaries().

fXmin

double G4DNARevertProbability::fXmin

Definition at line 47 of file G4DNARevertProbability.hh.

Referenced by G4DNARevertProbability(), Propose(), Reset(), Revert(), and SetBoundaries().

fXminDef

double G4DNARevertProbability::fXminDef

Definition at line 49 of file G4DNARevertProbability.hh.

Referenced by G4DNARevertProbability(), Propose(), Reset(), and SetBoundaries().

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

• source/processes/electromagnetic/dna/utils/include/G4DNARevertProbability.hh