How to use

resetQueue

method

in

weka.filters.unsupervised.attribute.Center

/**
 * Input an instance for filtering. Filter requires all
 * training instances be read before producing output.
 *
 * @param instance             the input instance
 * @return true             if the filtered instance may now be 
 *                     collected with output().
 * @throws IllegalStateException     if no input format has been set.
 */
public boolean input(Instance instance) {
 if (getInputFormat() == null)
  throw new IllegalStateException("No input instance format defined");
 if (m_NewBatch) {
  resetQueue();
  m_NewBatch = false;
 }
 
 if (m_Means == null) {
  bufferInput(instance);
  return false;
 } 
 else {
  convertInstance(instance);
  return true;
 }
}

/**
 * Input an instance for filtering. Filter requires all
 * training instances be read before producing output.
 *
 * @param instance             the input instance
 * @return true             if the filtered instance may now be 
 *                     collected with output().
 * @throws IllegalStateException     if no input format has been set.
 */
public boolean input(Instance instance) {
 if (getInputFormat() == null)
  throw new IllegalStateException("No input instance format defined");
 if (m_NewBatch) {
  resetQueue();
  m_NewBatch = false;
 }
 
 if (m_Means == null) {
  bufferInput(instance);
  return false;
 } 
 else {
  convertInstance(instance);
  return true;
 }
}