Welcome to our new GRASS-PSC list. Markus -- Markus Neteler <neteler itc it> http://mpa.itc.it/markus/ ITC-irst - Centro per la Ricerca Scientifica e Tecnologica MPBA - Predictive Models for Biol. & Environ. Data Analysis Via Sommarive, 18 - 38050 Povo (Trento), Italy