Class: ParentAccessor

Inherits:
Object
  • Object
show all
Defined in:
lib/fathom/archive/conditional_probability_matrix.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cpm, child_labels) ⇒ ParentAccessor

Returns a new instance of ParentAccessor.



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# File 'lib/fathom/archive/conditional_probability_matrix.rb', line 39

def initialize(cpm, child_labels)
  @cpm = cpm
  @child_labels = child_labels
  @node = cpm.parent
  @child_indices = child_labels.map {|label| @cpm.child.labels.index(label)}
end

Instance Attribute Details

#child_indices ⇒ Object (readonly)

Returns the value of attribute child_indices.



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# File 'lib/fathom/archive/conditional_probability_matrix.rb', line 38

def child_indices
  @child_indices
end

#child_labels ⇒ Object (readonly)

Returns the value of attribute child_labels.



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# File 'lib/fathom/archive/conditional_probability_matrix.rb', line 38

def child_labels
  @child_labels
end

#cpm ⇒ Object (readonly)

Returns the value of attribute cpm.



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# File 'lib/fathom/archive/conditional_probability_matrix.rb', line 38

def cpm
  @cpm
end

#node ⇒ Object (readonly)

Returns the value of attribute node.



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# File 'lib/fathom/archive/conditional_probability_matrix.rb', line 38

def node
  @node
end

Instance Method Details

#is(*labels) ⇒ Object 



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# File 'lib/fathom/archive/conditional_probability_matrix.rb', line 46

def is(*labels)
  indices = labels.map {|label| get_index(label) }
  sum_probabilities(indices)
end

#is_not(*labels) ⇒ Object 



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# File 'lib/fathom/archive/conditional_probability_matrix.rb', line 51

def is_not(*labels)
  not_indices = labels.map {|label| get_index(label) }
  indices = (0..node.labels.size).to_a - not_indices
  sum_probabilities(indices)
end