code: public double scoreOf(Datum<L, F> example, L label) {
      if(example instanceof RVFDatum<?, ?>)return scoreOfRVFDatum((RVFDatum<L,F>)example, label);
      int iLabel = labelIndex.indexOf(label);
      double score = 0.0;
      for (F f : example.asFeatures()) {
        score += weight(f, iLabel);
      }
      return score + thresholds[iLabel];
    }
docs: Returns of the score of the Datum for the specified label.
  Ignores the true label of the Datum.