Package fuzz :: Module fnumber :: Class FuzzyNumber

Class FuzzyNumber

object --+
         |
        FuzzyNumber

Known Subclasses:

Fuzzy number class (abstract base class for all fuzzy numbers).

Instance Methods

[hide private]

__init__(self)
Constructor.

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str

__repr__(self)
Return the canonical representation of a fuzzy number.

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str

__str__(self)
Return the string representation of a fuzzy number.

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mu(self, value)
Return the membership level of a value in the universal set domain of the fuzzy number.

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normalize(self)
Normalize this fuzzy number, so that its height is equal to 1.0.

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PolygonalFuzzyNumber

to_polygonal(self)
Convert this fuzzy number into a polygonal fuzzy number.

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FuzzyNumber

__or__(self, other)
Return the standard fuzzy union of two polygonal fuzzy numbers.

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FuzzyNumber

__ior__(self, other)
In-place standard fuzzy union.

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PolygonalFuzzyNumber

union(self, other)
Return the standard fuzzy union of two fuzzy numbers as a new polygonal fuzzy number.

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FuzzyNumber

__and__(self, other)
Return the standard fuzzy intersection of two fuzzy numbers.

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FuzzyNumber

__iand__(self, other)
In-place standard fuzzy intersection.

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PolygonalFuzzyNumber

intersection(self, other)
Return the standard fuzzy intersection of two fuzzy numbers as a new polygonal fuzzy number.

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Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Static Methods

[hide private]

_binary_sanity_check(other)
Check that the other argument to a binary operation is also a fuzzy number, raising a TypeError otherwise.

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Class Variables

[hide private]

kernel = None
hash(x)

support = None
hash(x)

height = None
hash(x)

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self)
(Constructor)

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Constructor. Not to be instantiated directly.

Overrides: object.__init__

repr(self)
(Representation operator)

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Return the canonical representation of a fuzzy number.

Returns: str: Canonical representation.
Overrides: object.__repr__

str(self)
(Informal representation operator)

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Return the string representation of a fuzzy number.

Returns: str: String representation.
Overrides: object.__str__

_binary_sanity_check(other)
Static Method

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Check that the other argument to a binary operation is also a fuzzy number, raising a TypeError otherwise.

Parameters:

other (FuzzyNumber) - The other argument.

mu(self, value)

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Return the membership level of a value in the universal set domain of the fuzzy number.

Parameters:

value (float) - A value in the universal set.

to_polygonal(self)

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Convert this fuzzy number into a polygonal fuzzy number.

Returns: PolygonalFuzzyNumber: Result polygonal fuzzy number.

or(self, other)
(Or operator)

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Return the standard fuzzy union of two polygonal fuzzy numbers.

Parameters:

other (FuzzyNumber) - The other fuzzy number.

Returns: FuzzyNumber

The fuzzy union.

ior(self, other)

source code

In-place standard fuzzy union.

Parameters:

other (FuzzyNumber) - The other fuzzy number.

Returns: FuzzyNumber

The fuzzy union (self).

union(self, other)

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Return the standard fuzzy union of two fuzzy numbers as a new polygonal fuzzy number.

Parameters:

other (FuzzyNumber) - The other fuzzy number.

Returns: PolygonalFuzzyNumber

The fuzzy union.

and(self, other)
(And operator)

source code

Return the standard fuzzy intersection of two fuzzy numbers.

Parameters:

other (FuzzyNumber) - The other fuzzy number.

Returns: FuzzyNumber

The fuzzy intersection.

iand(self, other)

source code

In-place standard fuzzy intersection.

Parameters:

other (FuzzyNumber) - The other fuzzy number.

Returns: FuzzyNumber

The fuzzy intersection (self).

intersection(self, other)

source code

Return the standard fuzzy intersection of two fuzzy numbers as a new polygonal fuzzy number.

Parameters:

other (FuzzyNumber) - The other fuzzy number.

Returns: PolygonalFuzzyNumber

The fuzzy union.

Class FuzzyNumber

__init__(self) (Constructor)

__repr__(self) (Representation operator)

__str__(self) (Informal representation operator)

_binary_sanity_check(other) Static Method

mu(self, value)

to_polygonal(self)

__or__(self, other) (Or operator)

__ior__(self, other)

union(self, other)

__and__(self, other) (And operator)

__iand__(self, other)

intersection(self, other)

init(self)
(Constructor)

repr(self)
(Representation operator)

str(self)
(Informal representation operator)

_binary_sanity_check(other)
Static Method

or(self, other)
(Or operator)

ior(self, other)

and(self, other)
(And operator)

iand(self, other)