code: @Deprecated
    public double scoreOf(RVFDatum<L, F> example, L label) {
      int iLabel = labelIndex.indexOf(label);
      double score = 0.0;
      Counter<F> features = example.asFeaturesCounter();
      for (F f : features.keySet()) {
        score += weight(f, iLabel) * features.getCount(f);
      }
      return score + thresholds[iLabel];
    }
docs: Returns the score of the RVFDatum for the specified label.
  Ignores the true label of the RVFDatum.