m_handleMissingPredictors = checkMissingPredictors(20, false);
  protected void setUp() throws Exception {    m_Clusterer = getClusterer();    m_Tester     = new CheckClusterer();    m_Tester.setSilent(true);    m_Tester.setClusterer(m_Clusterer);    m_Tester.setNumInstances(20);    m_Tester.setDebug(DEBUG);    m_weightedInstancesHandler     = m_Tester.weightedInstancesHandler()[0];    m_multiInstanceHandler         = m_Tester.multiInstanceHandler()[0];    m_NominalPredictors            = false;    m_NumericPredictors            = false;    m_StringPredictors             = false;    m_DatePredictors               = false;    m_RelationalPredictors         = false;    m_handleMissingPredictors      = false;    // initialize attributes    checkAttributes(true,  false, false, false, false, false);    checkAttributes(false, true,  false, false, false, false);    checkAttributes(false, false, true,  false, false, false);    checkAttributes(false, false, false, true,  false, false);    checkAttributes(false, false, false, false, true,  false);  }