RuleBlock

RuleBlock

Block of rules and fuzzy logic operators required to control an engine.

related

• fuzzylite.engine.Engine
• fuzzylite.rule.Rule
• fuzzylite.norm.SNorm
• fuzzylite.norm.TNorm
• fuzzylite.activation.Activation

Attributes

activation instance-attribute

activation = activation

conjunction instance-attribute

conjunction = conjunction

description instance-attribute

description = description

disjunction instance-attribute

disjunction = disjunction

enabled instance-attribute

enabled = enabled

implication instance-attribute

implication = implication

name instance-attribute

name = name

rules instance-attribute

rules = list(rules or [])

Functions

__getitem__

__getitem__(item: int | slice) -> Rule | list[Rule]

Allow indexing rules in rule block (eg, rule_block[0]).

Parameters:

Name	Type	Description	Default
item	int | slice	rule index or slice	required

Returns:

Type	Description
Rule | list[Rule]	rule at index or slice of rules

__init__

__init__(
    name: str = "",
    description: str = "",
    enabled: bool = True,
    conjunction: TNorm | None = None,
    disjunction: SNorm | None = None,
    implication: TNorm | None = None,
    activation: Activation | None = None,
    rules: Iterable[Rule] | None = None,
) -> None

Constructor.

Parameters:

Name	Type	Description	Default
name	str	name of the rule block	''
description	str	description of the rule block	''
enabled	bool	enable the rule block	True
conjunction	TNorm | None	conjunction operator	None
disjunction	SNorm | None	disjunction operator	None
implication	TNorm | None	implication operator	None
activation	Activation | None	activation method	None
rules	Iterable[Rule] | None	list of rules.	None

__iter__

__iter__() -> Iterator[Rule]

Return the iterator of the rules.

Returns:

Type	Description
Iterator[Rule]	iterator of the rules

__len__

__len__() -> int

Return the number of rules.

Returns:

Type	Description
int	number of rules

__repr__

__repr__() -> str

Return the code to construct the rule block in Python.

Returns:

Type	Description
str	code to construct the rule block in Python.

__str__

__str__() -> str

Return the code to construct the rule block in the FuzzyLite Language.

Returns:

Type	Description
str	code to construct the rule block in the FuzzyLite Language.

activate

activate() -> None

Activate the rule block.

load_rules

load_rules(engine: Engine) -> None

Load all the rules in the rule block.

Parameters:

Name	Type	Description	Default
engine	Engine	engine where this rule block is registered.	required

reload_rules

reload_rules(engine: Engine) -> None

Reload all the rules in the rule block.

Parameters:

Name	Type	Description	Default
engine	Engine	engine where this rule block is registered.	required

rule

rule(index: int) -> Rule

Get the rule at the index.

Parameters:

Name	Type	Description	Default
index	int	index of the rule.	required

Returns:

Type	Description
Rule	rule at the index

unload_rules

unload_rules() -> None

Unload all the rules in the rule block.