Class: Adherence

Inherits:
Object
  • Object
show all
Includes:
Norm
Defined in:
lib/rfuzzy/adherence.rb

Overview

Adherence. Basically it’s a Float in range [0;1] allowing norm operations.

Constant Summary

Constants included from Norm

Norm::NORM_METHODS

Instance Method Summary collapse

Methods included from Norm

norm_method, #s_norm_max_min, #s_norm_prob, #t_norm_max_min, #t_norm_prob

Constructor Details

#initialize(val) ⇒ Adherence

Constructor. Usage .new(Float value) Value must be [0;1]



8
9
10
11
12
13
 
# File 'lib/rfuzzy/adherence.rb', line 8

def initialize(val)
	if val < 0 || val > 1
		raise ArgumentError, "Adherence must be in [0;1]"
	end
	@adh = val
end

Instance Method Details

#and(other, method = :auto) ⇒ Object

Performs t-norm on itself and other. Usage: <tt>.and(Adherence other, Symbol method) <tt>.and(Adherence other)



22
23
24
25
26
27
28
29
30
31
 
# File 'lib/rfuzzy/adherence.rb', line 22

def and(other, method = :auto)
	if(method == :auto)
		unless @@norm_method.nil?
			method = @@norm_method
		else
			raise ArgumentError, "Specify method, or call Norm::norm_method"
		end
	end
	return Adherence.new(self.method(NORM_METHODS[method][:t]).call(self.to_f, other.to_f))
end

#not ⇒ Object

Performs negation.



48
49
50
 
# File 'lib/rfuzzy/adherence.rb', line 48

def not
	return Adherence.new(1 - @value)
end

#or(other, method = :auto) ⇒ Object

Performs s-norm on itself and other. Usage: <tt>.or(Adherence other, Symbol method) <tt>.or(Adherence other)



36
37
38
39
40
41
42
43
44
45
 
# File 'lib/rfuzzy/adherence.rb', line 36

def or(other, method = :auto)
	if(method == :auto)
		unless @@norm_method.nil?
			method = @@norm_method
		else
			raise ArgumentError, "Specify method, or call Norm::norm_method"
		end
	end
	return Adherence.new(self.method(NORM_METHODS[method][:s]).call(self.to_f, other.to_f))
end

#to_f ⇒ Object 



15
16
17
 
# File 'lib/rfuzzy/adherence.rb', line 15

def to_f
	return @adh
end