IRIS::Fuzzy::MembershipFn Class Reference

#include <MembershipFn.h>

Inheritance diagram for IRIS::Fuzzy::MembershipFn:

[legend]Collaboration diagram for IRIS::Fuzzy::MembershipFn:

[legend]List of all members.

Public Types
typedef pair< double, double >	interval
typedef std::vector< double >	parm_list
	type for list of parameters
typedef vector< double >	vector
	type for the vectorized form of this member function
Public Member Functions
	MembershipFn ()
	create an empty membership function
	MembershipFn (const parm_list &parm)
	MembershipFn (const string &name)
	MembershipFn (const string &name, double min, double max)
	~MembershipFn ()
	destroy a membership function by releasing unneeded memory
void	set (const string &name, double min, double max)
void	set (double newMin, double newMax)
void	setMin (double newMin)
void	setMax (double newMax)
void	set (unsigned i, double val)
void	clear ()
	clears out a membership function
virtual void	discretize (unsigned degree)=0
void	get (string &name, double &min, double &max) const
void	get (double &min, double &max) const
double	getMin () const
	get the lower bound of the range of this set
double	getMax () const
	get the upper bound of the range of this set
interval	get () const
	get the range of this set, described as an interval
interval	dom () const
double	get (unsigned i)
	gets the value of the ith parameter
virtual void	draw () const
virtual double	eval (double x) const =0
virtual double	operator() (double val) const =0
double &	operator[] (unsigned i)
	sets the ith item in the vector of the member function
double	operator[] (unsigned i) const
	gets the ith item in the vector of the member function
vector	getVector () const
void	setName (const string &name)
void	set (const string &name)
string	getName () const
	get the name of this set
void	get (string &name) const
Protected Attributes
interval	range
parm_list	parameter
vector	x
string	name

---

Detailed Description

A class interface for some of the most common, standard membership functions used in the fuzzy logic community; this version of a fuzzy set is numeric and vectorizable.

---

Member Typedef Documentation

typedef pair<double,double> IRIS::Fuzzy::MembershipFn::interval

describe an interval as a pair indicating a lower bound and an upper bound

typedef std::vector<double> IRIS::Fuzzy::MembershipFn::parm_list

type for list of parameters

typedef vector<double> IRIS::Fuzzy::Numeric::vector [inherited]

type for the vectorized form of this member function

---

Constructor & Destructor Documentation

IRIS::Fuzzy::MembershipFn::MembershipFn (   )

create an empty membership function

IRIS::Fuzzy::MembershipFn::MembershipFn (  const parm_list &  parm  )

create an membership function with the given parameter list Parameters: parm  list of parameters

IRIS::Fuzzy::MembershipFn::MembershipFn (  const string &  name  )

create an empty set with an associated name Parameters: name  name to give this set

IRIS::Fuzzy::MembershipFn::MembershipFn (  const string &  name, double  min, double  max )

create an empty set with an associated name and a range defined by the interval min ... max Parameters: name  name to give this set min  lower bound for range max  upper bound for range

IRIS::Fuzzy::MembershipFn::~MembershipFn (   )

destroy a membership function by releasing unneeded memory

---

Member Function Documentation

void IRIS::Fuzzy::MembershipFn::clear (   )

clears out a membership function Reimplemented from IRIS::Fuzzy::Numeric.

virtual void IRIS::Fuzzy::MembershipFn::discretize (  unsigned  degree  )  [pure virtual]

discretize a membership function based on the given degree of discretization (number of elements in the vectorized form) Parameters: degree  degree of discretization (or number of elements in the vectorized form of this membership function) Implements IRIS::Fuzzy::Numeric. Implemented in IRIS::Fuzzy::BellMF, IRIS::Fuzzy::dSigMF, IRIS::Fuzzy::GaussMF, IRIS::Fuzzy::pSigMF, IRIS::Fuzzy::SigMF, IRIS::Fuzzy::TrapMF, IRIS::Fuzzy::TriMF, and IRIS::Fuzzy::ZMF.

MembershipFn::interval IRIS::Fuzzy::MembershipFn::dom (   )  const

get the domain of this set; same as get() See also: get()

void IRIS::Fuzzy::MembershipFn::draw (   )  const [virtual]

draw this set to see what it looks like; included primarily for debugging purposes ... Reimplemented from IRIS::Fuzzy::Numeric. Reimplemented in IRIS::Fuzzy::BellMF, IRIS::Fuzzy::dSigMF, IRIS::Fuzzy::GaussMF, IRIS::Fuzzy::pSigMF, IRIS::Fuzzy::SigMF, IRIS::Fuzzy::TrapMF, IRIS::Fuzzy::TriMF, and IRIS::Fuzzy::ZMF.

virtual double IRIS::Fuzzy::MembershipFn::eval (  double  x  )  const [pure virtual]

evaluate a membership function based on the given x Parameters: x  element of domain of membership function Implements IRIS::Fuzzy::Numeric. Implemented in IRIS::Fuzzy::BellMF, IRIS::Fuzzy::dSigMF, IRIS::Fuzzy::GaussMF, IRIS::Fuzzy::pSigMF, IRIS::Fuzzy::SigMF, IRIS::Fuzzy::TrapMF, IRIS::Fuzzy::TriMF, and IRIS::Fuzzy::ZMF.

void IRIS::Fuzzy::Set::get (  string &  name  )  const [inherited]

get the name of this set; same as getName() Parameters: name  name given this set See also: getName()

double IRIS::Fuzzy::MembershipFn::get (  unsigned  i  )

gets the value of the ith parameter

MembershipFn::interval IRIS::Fuzzy::MembershipFn::get (   )  const

get the range of this set, described as an interval

void IRIS::Fuzzy::MembershipFn::get (  double &  min, double &  max )  const

get the range for this set Parameters: min  lower bound for range max  upper bound for range

void IRIS::Fuzzy::MembershipFn::get (  string &  name, double &  min, double &  max )  const

get the name and range for this set Parameters: name  name given to this set min  lower bound for range max  upper bound for range

double IRIS::Fuzzy::MembershipFn::getMax (   )  const

get the upper bound of the range of this set

double IRIS::Fuzzy::MembershipFn::getMin (   )  const

get the lower bound of the range of this set

string IRIS::Fuzzy::Set::getName (   )  const [inherited]

get the name of this set

Numeric::vector IRIS::Fuzzy::Numeric::getVector (   )  const [inherited]

gets the vectorized form of a membership function based on the set level of discretization

virtual double IRIS::Fuzzy::MembershipFn::operator() (  double  val  )  const [pure virtual]

evaluate membership of the given value in this set Parameters: val  value to use when evaluating this set Implements IRIS::Fuzzy::Numeric. Implemented in IRIS::Fuzzy::BellMF, IRIS::Fuzzy::dSigMF, IRIS::Fuzzy::GaussMF, IRIS::Fuzzy::pSigMF, IRIS::Fuzzy::SigMF, IRIS::Fuzzy::TrapMF, IRIS::Fuzzy::TriMF, and IRIS::Fuzzy::ZMF.

double IRIS::Fuzzy::Numeric::operator[] (  unsigned  i  )  const [inherited]

gets the ith item in the vector of the member function

double & IRIS::Fuzzy::Numeric::operator[] (  unsigned  i  )  [inherited]

sets the ith item in the vector of the member function

void IRIS::Fuzzy::Set::set (  const string &  name  )  [inherited]

set the name for this set; same as setName() Parameters: name  name to give this set See also: setName()

void IRIS::Fuzzy::MembershipFn::set (  unsigned  i, double  val )

sets the ith parameter for this member function to val Parameters: i  parameter number: based on type of membership function val  new value of ith parameter

void IRIS::Fuzzy::MembershipFn::set (  double  newMin, double  newMax )

set the range for this set Parameters: newMin  new lower bound for range newMax  new upper bound for range Reimplemented in IRIS::Fuzzy::GaussMF, IRIS::Fuzzy::SigMF, and IRIS::Fuzzy::ZMF.

void IRIS::Fuzzy::MembershipFn::set (  const string &  name, double  min, double  max )

set the name and range for this set Parameters: name  name to give this set min  lower bound for range max  upper bound for range

void IRIS::Fuzzy::MembershipFn::setMax (  double  newMax  )

set the upper bound for the range for this set Parameters: newMax  new upper bound for range

void IRIS::Fuzzy::MembershipFn::setMin (  double  newMin  )

set the lower bound for the range for this set Parameters: newMin  new lower bound for range

void IRIS::Fuzzy::Set::setName (  const string &  name  )  [inherited]

set the name for this set Parameters: name  name to give this set

---

Member Data Documentation

string IRIS::Fuzzy::Set::name [protected, inherited]

parm_list IRIS::Fuzzy::MembershipFn::parameter [protected]

interval IRIS::Fuzzy::MembershipFn::range [protected]

vector IRIS::Fuzzy::Numeric::x [protected, inherited]

---

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

• MembershipFn.h
• MembershipFn.cpp

---