Class: LabTech::Result

Inherits:
ApplicationRecord show all
Defined in:
app/models/lab_tech/result.rb

Constant Summary collapse

DEFAULT_COMPARISON = 
->(control, candidate) {
  [ control, candidate ].map { |obs|
    "    %20s # => %s" % [ obs.name, obs.value.inspect ]
  }
}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.record_a_science(experiment, scientist_result, *args) ⇒ Object 



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# File 'app/models/lab_tech/result.rb', line 27

def record_a_science( experiment, scientist_result, *args )
  create!(experiment: experiment) do |result|
    result.record_a_science scientist_result, *args
  end
end

Instance Method Details

#candidate ⇒ Object

Having multiple candidates is annoying; I’ve mistyped this one a lot



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# File 'app/models/lab_tech/result.rb', line 40

def candidate
  candidates.first
end

#compare_observations(io: $stdout, &block) ⇒ Object 



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# File 'app/models/lab_tech/result.rb', line 49

def compare_observations(io: $stdout, &block)
  block ||= DEFAULT_COMPARISON
  candidates.each do |candidate|
    io.puts block.( control, candidate )
  end
  return nil
end

#record_a_science(scientist_result, diff_with: nil) ⇒ Object 



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# File 'app/models/lab_tech/result.rb', line 57

def record_a_science(scientist_result, diff_with: nil)
  unless scientist_result.kind_of?( Scientist::Result )
    raise ArgumentError, "expected a Scientist::Result but got #{scientist_result.class}"
  end

  self.context = scientist_result.context

  record_observation scientist_result.control
  scientist_result.candidates.each do |candidate|
    diff = nil
    if diff_with
      # Pass values to the diff block, not the observations themselves
      cont = scientist_result.control.value
      cand = candidate.value
      diff = diff_with&.call(cont, cand)
    end

    record_observation candidate, diff: diff
  end

  record_simple_stats scientist_result
end

#speedup ⇒ Object 



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# File 'app/models/lab_tech/result.rb', line 80

def speedup
  return nil unless candidates.count == 1

  LabTech::Speedup.new(
    baseline:   control.duration,
    comparison: candidate.duration,
    time:       time_delta,
    factor:     speedup_factor,
  )
end

#timed_out? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/lab_tech/result.rb', line 91

def timed_out?
  candidates.any?(&:timed_out?)
end