code: public List<Vec> getDataVectors()
      {
          List<Vec> vecs = new ArrayList<>(size());
          for(int i = 0; i < size(); i++)
              vecs.add(getDataPoint(i).getNumericalValues());
          return vecs;
      }
docs: Creates a list of the vectors values for each data point in the correct order.
  @return a list of the vectors for the data points