push(new SparseInstance(instance));
Instance inst = new SparseInstance(instance); inst.setDataset(instance.dataset()); push(inst);
  public boolean input(Instance instance) throws Exception {    if (getInputFormat() == null) {      throw new Exception("No input instance format defined");    }    if (m_NewBatch) {      resetQueue();      m_NewBatch = false;    }    push(new SparseInstance(instance));    return true;  }