Method: Ariel::Learner#perfect?

Defined in:
lib/ariel/learner.rb

#perfect?(rule) ⇒ Boolean

A given rule is perfect if it successfully matches the label on at least one example and fails all others.

Returns:

  • (Boolean)
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# File 'lib/ariel/learner.rb', line 100

def perfect?(rule)
  perfect_count=0
  fail_count=0
  @examples.each do |example|
    if rule.matches(example, :perfect)
      perfect_count+=1
    elsif rule.matches(example, :fail) 
      fail_count+=1
    end
  end
  if (perfect_count >= 1) && (fail_count == (@examples.size - perfect_count))
    return true
  else
    Log.debug "Rule was not perfect, perfect_count=#{perfect_count}, fail_count=#{fail_count}"
    return false
  end
end