docs: @Override
    public Counter<L> logProbabilityOf(Datum<L, F> example) {
      if (platt == null) {
        throw new UnsupportedOperationException("If you want to ask for the probability, you must train a Platt model!");
      }
      Counter<L> scores = scoresOf(example);
      scores.incrementCount(null);
      Counter<L> probs = platt.logProbabilityOf(new RVFDatum<L, L>(scores));
      //System.out.println(scores+" "+probs);
      return probs;
    }