TIFuzzyLogic Class

TComponent
FuzzyLogic.TCustomFuzzyLogic
IFuzzyLogic.TIFuzzyLogic

Delphi

type
TIFuzzyLogic = class(TCustomFuzzyLogic)
end;

	Name	Description
	Create(TComponent)	Initializes a new instance of the TIFuzzyLogic class. (Overrides FuzzyLogic.TCustomFuzzyLogic.Create(TComponent).)
	Destroy	Represents the destructor of the TIFuzzyLogic class. (Overrides FuzzyLogic.TCustomFuzzyLogic.Destroy.)

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	Name	Description
	AutoTerms	Controls whether the fuzzy logic component will automatically generate the fuzzy terms or sets; low, medium, and high; for each new fuzzy variable. If this property is false, newly created fuzzy variables will have no fuzzy sets until you define them.
	CorrelationMethod	Defines which of the two fuzzy correlation methods are used in correlation: Minimum and Product.
	DefuzzificationMethod	Defines the defuzzification method that fuzzy sets should use for determining a value that best represents the fuzzy set. There are two methods available: center of gravity and mean of maxima
	InferenceMethod	Controls which fuzzy inference methods is used in fuzzy inference ( see Infer method).
	ItemClass	Used by the Parser property to determine the fuzzy variable class to instantiate when it parses and creates a fuzzy variable.
	Items	Lists the fuzzy variables for the fuzzy logic. Use the Items property to iterate through all the fuzzy variables.
	NeedsUpdate	Represents property NeedsUpdate. (Inherited from FuzzyLogic.TCustomFuzzyLogic.)
	NumFunctionValues	Defines the default number of XY value pairs used to create fuzzy sets.
	OnChange	Occurs when the fuzzy variable is changed, either its properties such as Minimum and Maximum or when fuzzy sets are added and deleted.
	Parser	Refers to the IFuzzyParser interface implementation which can print and parse the fuzzy variable and its fuzzy sets
	Strings	Contains a string representation of all the fuzzy variables and fuzzy sets in the fuzzy logic component. As fuzzy variables and sets are added to the component, this property gets updated. You can also change the strings property and fuzzy variables and sets will be automatically added, changed, and deleted.
	Threshold	Defines the "noise" level of fuzzy sets in the variable. When two fuzzy sets are compared to see if they are equal, all the XY value pairs of the two fuzzy sets are compared. If the minimum Y value of the two fuzzy sets at some X point exceed the threshold, then they equal
	Variables	Provides a place where you can define variables using name=value pairs, e.g., x=cold or warm.

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	Name	Description
	AddAutoTerms(IFuzzyVariable)	Represents method AddAutoTerms(IFuzzyVariable).
	CreateVariables	Represents method CreateVariables.
	FuzzySetAdded(IFuzzyVariable,IFuzzySet)	Represents method FuzzySetAdded(IFuzzyVariable,IFuzzySet).
	FuzzySetDeleted(IFuzzyVariable,IFuzzySet)	Represents method FuzzySetDeleted(IFuzzyVariable,IFuzzySet).
	Loaded	Represents method Loaded.
	Notification(TComponent,TOperation)	Represents method Notification(TComponent,TOperation). (Inherited from FuzzyLogic.TCustomFuzzyLogic.)
	Parse	Parse its Strings property. The Parse method uses the TCustomFuzzyLogicParser component pointed at by the Parser property. (Overrides FuzzyLogic.TCustomFuzzyLogic.Parse.)
	ThresholdChanged	Represents method ThresholdChanged. (Overrides FuzzyLogic.TCustomFuzzyLogic.ThresholdChanged.)
	UpdateFuzzySet(IFuzzyVariable,IFuzzySet)	Represents method UpdateFuzzySet(IFuzzyVariable,IFuzzySet).
	UpdateStrings	Represents method UpdateStrings. (Overrides FuzzyLogic.TCustomFuzzyLogic.UpdateStrings.)
	UpdateVariable(IFuzzyVariable)	Represents method UpdateVariable(IFuzzyVariable).
	VariableAdded(IFuzzyVariable)	Represents method VariableAdded(IFuzzyVariable).
	VariableDeleted(IFuzzyVariable)	Represents method VariableDeleted(IFuzzyVariable).

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	Name	Description
	OnFuzzySetAdded	Occurs when a fuzzy set is added to the fuzzy variable
	OnFuzzySetChange	Occurs when a fuzzy set in the fuzzy variable changes.
	OnFuzzySetDeleted	Occurs when a fuzzy set is removed from the fuzzy variable
	OnVariableAdded	Occurs when a fuzzy variable is added to the fuzzy logic component. Use the OnVariableAdded event when you need to respond to a new fuzzy variable being added.
	OnVariableChange	Occurs when a fuzzy variable is modified. The event occurs when the fuzzy variable is changed, either its properties such as Minimum and Maximum or when fuzzy sets are added and deleted. This event does not occur when a fuzzy set is changed. When fuzzy sets change, the OnFuzzySetChange event occurs.
	OnVariableDeleted	Occurs when a fuzzy variable is removed from the fuzzy logic component. Use the OnVariableDeleted event when you need to respond to a fuzzy variable being deleted from the component.

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This class defines the base properties and methods for defining fuzzy variables and fuzzy sets. Fuzzy variables (see IFuzzyVariable) define a linguistic variable, such as Temperature which may take fuzzy sets as values, such as warm, cold, or hot. Fuzzy Variables are much like set variables in Pascal. However, unlike Pascal variables, the enumerated items, or terms, in the set are fuzzy and not crisp. Pascal allows enumerated values to either be in or not in the set. Fuzzy variables allow values to be partially in the set. For example, we may define a fuzzy variable which is based on Temperature. Any variable of this type may take fuzzy set (see IFuzzySet) values of cold, warm, and hot (or some combination). Cold, warm, and hot are the fuzzy sets which define the terms of the type. Each fuzzy set defines a membership function over the domain of temperature. If, for our example, temperature has a range between 0 and 100 Celsius, Cold could be a fuzzy set that defined any value under 10 Celcius as completely cold (one or True), any value over 50 as not at all cold ( zero), and any value in between having a membership between zero and one.

The TIFuzzyLogic component manages fuzzy variables and sets using interfaces. If you wish to use objects, use the TFuzzyLogic component instead.

Reference

•IFuzzyLogic

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Reference