Class: Nsga2Individual

Inherits:

Struct

• Object
• Struct
• Nsga2Individual

show all

Defined in:

../algorithm/nsga2.rb

Constant Summary

@@uniq =

{}

Instance Attribute Summary (collapse)

• - (Object) crowding

  Returns the value of attribute crowding.

• - (Object) depth

  Returns the value of attribute depth.

• - (Object) orig

  Returns the value of attribute orig.

• - (Object) uniq

  Returns the value of attribute uniq.

Class Method Summary (collapse)

• + (Object) uniq_clear

Instance Method Summary (collapse)

• - (Object) <=>(other)
• - (Object) cache_uniq
• - (Boolean) dominates?(other)
• - (Nsga2Individual) initialize(orig, depth, crowding) constructor

  A new instance of Nsga2Individual.

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# File '../algorithm/nsga2.rb', line 15

def initialize( orig, depth, crowding ) 
  super
  @@uniq[orig.genotype] += 1
end

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# File '../algorithm/nsga2.rb', line 7

def crowding
  @crowding
end

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# File '../algorithm/nsga2.rb', line 7

def depth
  @depth
end

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# File '../algorithm/nsga2.rb', line 7

def orig
  @orig
end

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# File '../algorithm/nsga2.rb', line 7

def uniq
  @uniq
end

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# File '../algorithm/nsga2.rb', line 11

def Nsga2Individual.uniq_clear 
  @@uniq.clear
end

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# File '../algorithm/nsga2.rb', line 32

def <=>(other)
  if dominates? other
    return -1
  else
    return 1 if other.dominates? self
    return 0
  end
end

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# File '../algorithm/nsga2.rb', line 20

def cache_uniq
  self.uniq = @@uniq[orig.genotype]
end

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# File '../algorithm/nsga2.rb', line 24

def dominates? other
  return true if self.depth < other.depth
  return false if self.depth > other.depth
  return true if self.crowding > other.crowding
  return false if self.crowding < other.crowding   
  return self.uniq < other.uniq
end