def addMissingValue()

in core/src/main/scala/com/spotify/featran/transformers/NHotWeightedEncoder.scala [67:79]


  def addMissingValue(
    fb: FeatureBuilder[_],
    unseen: MSet[String],
    keys: Seq[String],
    unseenWeight: Double
  ): Unit =
    if (keys.isEmpty) {
      fb.add(name + '_' + MissingValueToken, 1.0)
    } else if (unseen.isEmpty) {
      fb.skip()
    } else {
      fb.add(name + '_' + MissingValueToken, unseenWeight)
    }