May be you aren't on the right working dir: getwd(),setwd(). Your R-script are able to find the thyphoon.txt path? Best! A.S. ---------------------------- Alessandro Semeria Models and Simulations Laboratory Montecatini Environmental Research Center (Edison Group), Via Ciro Menotti 48, 48023 Marina di Ravenna (RA), Italy Tel. +39 544 536811 Fax. +39 544 538663 E-mail: alessandro.semeria at cramont.it
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