class

AtomSpace::TruthValue

Inherits Reference < Object

Base class for all truth value types

Constants

DEFAULT_TV = SimpleTruthValue.new(1.0, 0.0)

Default truth values

FALSE_TV = SimpleTruthValue.new(0.0, 1.0)

NULL_TV = SimpleTruthValue.new(0.0, 0.0)

TRUE_TV = SimpleTruthValue.new(1.0, 1.0)

Constructors

from_string(str : String) : TruthValue

Create truth value from string representation

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Instance methods

==(other : TruthValue) : Bool

Check equality with another truth value

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clone

Clone this truth value

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confidence

Get the confidence (degree of certainty) [0.0, 1.0]

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count

Get the count (amount of evidence)

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false?

Check if this represents definite falsehood

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hash(hasher)

Hash function for use in collections

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merge(other : TruthValue) : TruthValue

Merge with another truth value

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null?

Check if this truth value is the default/null TV

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strength

Get the strength (degree of belief) [0.0, 1.0]

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to_a

Get truth value as float array [strength, confidence]

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to_s(io : IO) : Nil

Convert to string representation

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true?

Check if this represents definite truth

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type_name

Get the type name of this truth value

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valid?

Check if truth value is valid

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