Once I had xposted some info to ldbase-l from another "statistician" who had studied listserv lists. This might have posted to lstown-l too. -- co-owner INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L [log in to unmask] "Right bullet, wrong target" s/me +1 814 863 1843 31 Shields Bldg. -- Penn State Univ -- University Park, PA 16802-1202 USA