public CategClusterSet(IndivDatas inds)
 {
     if (inds != null)
     {
         m_indivs = (IndivDatas)inds.Clone();
         if ((m_indivs != null) && (m_indivs.Count > 0))
         {
             var p = m_indivs.First();
             m_nvars = p.IntData.Length;
         }
     }
 }