Hi try unique(mfDF$ID) Best wishes Torleif ________________________________
Fra: [email protected] på vegne av gianni lavaredo Sendt: lø 14.03.2009 18:52 Til: [email protected] Emne: [R-sig-Geo] help to obtain the list of the ID Thanks in advice for your time, Sorry for this simple question I am searching a function or a method to obtain the list of the ID. I tryed sever combination like manual or in R wiki mfDF <- data.frame( ID =c(1,1,1,1,2,2,2,2,2,3,3,3,3,3,3,3,3), value =c(2,12,25,50,100,200,6,12,50,25,50,50,6,8,90,5,8)) like this > 1 2 3 Thanks and sorry Gianni [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
