checkMissingPredictors(100);
checkMissingPredictors(100, true);
  public void testMissingPredictors() {    if (!canPredict())      return;        // 20% missing    m_handleMissingPredictors = checkMissingPredictors(20);    // 100% missing    if (m_handleMissingPredictors)      checkMissingPredictors(100);  }