throw new Exception("Euclidean Distance allows only numeric attributes.");
throw new Exception("Euclidean Distance only allows numeric attributes.");
  public void checkInstances() throws Exception {        for (int i = 0; i < m_Model.numAttributes(); i++) {      if (m_Model.classIndex() != i) {	if (!m_Model.attribute(i).isNumeric())	  throw new Exception("Euclidean Distance allows only numeric attributes.");      }    }  }