Hi all, I've done a simple function for import files but can't do the same think for export files. Could you help me solve it? Thanks in advance for your cooperation. wd<-"C:\\Teste" import<-function(wd0){ wd1<-paste(wd,wd0,"Input\\.", sep = "\\") d<-read.table(choose.files(default = wd1, caption "Escolher o Ficheiro de Input - *.txt ", multi = FALSE), head=T,sep="\t",dec=".") return(d)} reg<-"Region1" import(reg) reg<-"Region2" import(reg) export<-function(wd0,var1,trim){ wd1<-paste(wd,wd0,trim,"Output\\.", sep = "\\") d<- write.table(var1,"C:/Teste/Region/Trim/Output/var1.txt",sep="\t",dec="." ,row.names=F) return(d)} reg<-"Region1" export(reg,Apur,1t05) export(reg,Apur,2t05) Atenciosamente Ana Patricia Martins ------------------------------------------- Serviço Métodos Estatísticos Departamento de Metodologia Estatística Telef: 218 426 100 - Ext: 3210 E-mail: <mailto:ana.pmartins@ine.pt> ana.pmartins@ine.pt [[alternative HTML version deleted]]