Thanks, yes, I would like to do it in one try. I a have a text file called archivo where every line is like that:
"2007-12-03 13:50:17 Juan Perez" ("yy-mm-dd hh:mm:ss First Name Second Name") My code is it: datos <- read.delim(archivo,header=FALSE,sep= " ",dec=".", col.names=c("date","time","fname", "sname",comment="#", colClasses = c("character","character","numeric","numeric")) f_h <- paste(datos[,"date"],datos[,"time"],sep=" ") fecha_hora <- strptime(f_h, "%y-%m-%d %H:%M:%S") Bye, Sebastián. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.