DIYfuturism.com - Presence Detection Bayesion Binary Sensor

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# Home Assistant YAML
# Bayesian Binary Sensor
# https://home-assistant.io/components/binary_sensor.bayesian/
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# Observes many device tracker entities to determine if home or not
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# http://www.diyfuturism.com/index.php/2017/11/26/presence-detection-with-home-assistant-bayesian-probability/
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- platform: bayesian
  prior: 0.5
  name: 'Brad Presence'
  probability_threshold: 0.9
  observations:
    - entity_id: 'device_tracker.brad_ping'
      prob_given_true: 0.9
      prob_given_false: 0.1
      platform: 'state'
      to_state: 'home'
    - entity_id: 'device_tracker.brad_ios'
      prob_given_true: 0.9
      prob_given_false: 0.2
      platform: 'state'
      to_state: 'home'
    - entity_id: 'device_tracker.brad_owntracks'
      prob_given_true: 0.9
      prob_given_false: 0.4
      platform: 'state'
      to_state: 'home'
    - entity_id: 'device_tracker.brad_nodered'
      prob_given_true: 0.8
      prob_given_false: 0.2
      platform: 'state'
      to_state: 'home'
    - entity_id: 'device_tracker.tile_keys'
      prob_given_true: 0.8
      prob_given_false: 0.4
      platform: 'state'
      to_state: 'home'