Does anyone know if GRASS has a way to apply R- or See5 derived decision trees to a set of images? --j -- Jonathan A. Greenberg, PhD NASA Postdoctoral Researcher NASA Ames Research Center MS 242-4 Moffett Field, CA 94035-1000 Phone: 415-794-5043 AIM: jgrn3007 MSN: jgrn3007 at hotmail.com