global_functions.cpp File Reference

This file contains implementation of the fuzzy AND, OR and product functions, plus some functions used by them. More...

#include "global_functions.hpp"
#include "slifis.hpp"
#include "pline.hpp"
#include "private.hpp"
#include <boost/version.hpp>

Include dependency graph for global_functions.cpp:

Namespaces
namespace	slifis
	This namespace includes all root classes, functions, and datatypes of the library.
Functions
void	slifis::P_FindIntersectionPoints (const MEMBFUNC &f1, const MEMBFUNC &f2, MEMBFUNC &out)
	Finds all intersection points between f1 and f2, and adds them to out.
void	slifis::P_ProcessPoints (const MEMBFUNC &fa, const MEMBFUNC &fb, MEMBFUNC &out, EN_MERGE_OP op)
	Considers all points of fa and fb, and adds them to out. Local function, not exported.
void	slifis::P_FindLowestFunction (const MEMBFUNC *f1, const MEMBFUNC *f2, const MEMBFUNC **f_L, const MEMBFUNC **f_R)
	Returns in f_L a pointer on the function f1 or f2, the one that first point is the lowest, and in f_R the other one.
static void	slifis::PrintDifferences (FILE *f, const RULE_BASE &rb1, const RULE_BASE &rb2)
	Prints in f the differences between the two rule bases.
static void	slifis::PrintDifferences (FILE *f, const FUZZY_ROOT &set1, const FUZZY_ROOT &set2)
	Prints in f the differences between the two sets of functions.
void	slifis::FuzzyMerge (EN_MERGE_OP op, const MEMBFUNC &in1, const MEMBFUNC &in2, MEMBFUNC &out)
	A wrapper functions for combining two membership function together, using slifis::EN_MERGE_OP.
void	slifis::FuzzyBSum (const MEMBFUNC &f1, const MEMBFUNC &f2, MEMBFUNC &out)
	Performs bounded sum between two functions ( )
void	slifis::FuzzyPSum (const MEMBFUNC &f1, const MEMBFUNC &f2, MEMBFUNC &out)
	Performs Probabilistic sum between two functions ( )
void	slifis::FuzzyLukas (const MEMBFUNC &f1, const MEMBFUNC &f2, MEMBFUNC &out)
	Performs Łukasiewicz t-norm between two functions ( )
void	slifis::FuzzyProduct (const MEMBFUNC &f1, const MEMBFUNC &f2, MEMBFUNC &out)
	Performs fuzzy product between two functions.
void	slifis::FuzzyMin (const MEMBFUNC &f1, const MEMBFUNC &f2, MEMBFUNC &out)
	Performs fuzzy MIN between two functions.
void	slifis::FuzzyMax (const MEMBFUNC &f1, const MEMBFUNC &f2, MEMBFUNC &out)
	Performs fuzzy MAX between two functions.
size_t	slifis::P_FIP_OneSide (const MEMBFUNC *f1, const MEMBFUNC *f2, MEMBFUNC *out)
	Finds all intersection points between f1 and f2, and adds them to out.
void	slifis::P_Process_OneSide (const MEMBFUNC &fa, const MEMBFUNC &fb, MEMBFUNC &out, EN_MERGE_OP op)
	Consider all points of fa, and compare to y value of fb. Add point to out if operation op tells to do so.
void	slifis::P_AddPointIfInInterval (MEMBFUNC *out, REALVAL x, FUZZYVAL y, REALVAL x1, REALVAL x2)
	Local function, not exported.
const char *	slifis::GetNow_String ()
	A function for returning current date.
void	slifis::PrintBuildInfo (std::ostream &st)
	Prints out build information in stream st.
void	slifis::PrintDifferences (FILE *f, const SLIFIS &fis1, const SLIFIS &fis2)
	Prints in f the differences between the two FIS.

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Detailed Description

This file contains implementation of the fuzzy AND, OR and product functions, plus some functions used by them.

The task is divided in several steps:

• check if both functions are empty, then, output funtion is empty too (but can be non-null)
• find intersection points, that is, find new points that _may_ be created ( P_FindIntersectionPoints() )
• process existing points ( P_ProcessPoints() )