Class: EnumerableOperator::Product

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/agents/sets/enum/op.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Enumerable

#each_cluster, #each_with_neighbors, #group, nest, #nest, #pipe

Constructor Details

#initialize(*factors) ⇒ Product

Returns a new instance of Product.



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# File 'lib/agents/sets/enum/op.rb', line 12

def initialize(*factors)
  @factors = factors
  @dim = @factors.length
end

Instance Attribute Details

#dim ⇒ Object (readonly)

Returns the value of attribute dim.



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# File 'lib/agents/sets/enum/op.rb', line 10

def dim
  @dim
end

#factors ⇒ Object (readonly)

Returns the value of attribute factors.



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# File 'lib/agents/sets/enum/op.rb', line 10

def factors
  @factors
end

Instance Method Details

#each(tuple = [nil]*@dim, i = 0, &block) ⇒ Object 



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# File 'lib/agents/sets/enum/op.rb', line 17

def each tuple = [nil]*@dim, i = 0, &block
  if i == @dim - 1 then
    @factors[i].each { |x| tuple[i] = x; yield tuple.dup }
  elsif i > 0
    @factors[i].each { |x| tuple[i] = x; each tuple, i + 1, &block }
  else
    @factors[i].each { |x| tuple[i] = x; each tuple, i + 1, &block }
    self
  end
end

#size ⇒ Object 



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# File 'lib/agents/sets/enum/op.rb', line 28

def size
  @factors.product { |enum| enum.size }
end