Class: NEAT::Neuron

Inherits:
NeatOb show all
Includes:
Math, Graph
Defined in:
lib/rubyneat/neuron.rb

Overview

Neuron – Basis of all Neat Neuron types.

Normally contains primatives which aids in its own expression, but the details of this remains to be worked out.

Direct Known Subclasses

BasicNeuronTypes::CosineNeuron, BasicNeuronTypes::InputNeuron, BasicNeuronTypes::SigmoidNeuron, BasicNeuronTypes::SineNeuron, BasicNeuronTypes::TanhNeuron

Constant Summary

@@neuron_types =

List of neuron types defined.

[]

Instance Attribute Summary (collapse)

Attributes inherited from NeatOb

#controller, #name

Class Method Summary (collapse)

Instance Method Summary (collapse)

Methods included from Graph

#<<, #add, #clear_graph, #inputs

Methods inherited from NeatOb

#initialize, #log, log, #to_s

Constructor Details

This class inherits a constructor from NEAT::NeatOb

Instance Attribute Details

- (Object) genotype (readonly)

Genotype to which we belong



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# File 'lib/rubyneat/neuron.rb', line 19

def genotype
  @genotype
end

- (Object) heirarchy_number

(assigned by wire!) Heirarchy number in the Genome / Critter We need this to assure we add genes in the proper order. This will be recalculated every time a new neuron is added.



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# File 'lib/rubyneat/neuron.rb', line 25

def heirarchy_number
  @heirarchy_number
end

- (Object) output

This is true if this is an output neuron.



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# File 'lib/rubyneat/neuron.rb', line 28

def output
  @output
end

- (Object) trait

Returns the value of attribute trait



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# File 'lib/rubyneat/neuron.rb', line 20

def trait
  @trait
end

Class Method Details

+ (Boolean) bias?

Returns:

  • (Boolean) 


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# File 'lib/rubyneat/neuron.rb', line 37

def self.bias? ; false ; end

+ (Object) inherited(clazz) 



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# File 'lib/rubyneat/neuron.rb', line 43

def self.inherited(clazz)
  @@neuron_types << clazz
end

+ (Boolean) input?

Class is is of Input type?

Returns:

  • (Boolean) 


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# File 'lib/rubyneat/neuron.rb', line 34

def self.input? ; false ; end

+ (Object) neuron_types

List of distinct neuron types (classes)



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# File 'lib/rubyneat/neuron.rb', line 48

def self.neuron_types; @@neuron_types ; end

Instance Method Details

- (Boolean) bias?

Returns:

  • (Boolean) 


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# File 'lib/rubyneat/neuron.rb', line 38

def bias? ; self.class.bias? ; end

- (Object) express(instance)

Function must be implemented by subclasses for phenotype generation. Basically, an instance is passed to this function and it will add a function to sum all inputs and a apply an operator to the sum.



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# File 'lib/rubyneat/neuron.rb', line 54

def express(instance)
  raise NeatException.new "express() must be implemented by subclass."
end

- (Boolean) input?

Returns:

  • (Boolean) 


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# File 'lib/rubyneat/neuron.rb', line 35

def input? ; self.class.input? ; end

- (Boolean) output?

Instantiation is of outout type?

Returns:

  • (Boolean) 


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# File 'lib/rubyneat/neuron.rb', line 41

def output? ; !!@output ; end