What do you want to get? And what exactly did you do?
Your question isn't very clear. Sarah On Mon, Apr 19, 2010 at 7:59 AM, n.via...@libero.it <n.via...@libero.it> wrote: > I have a problem with the merge function. > I have to merge two big dataframes which look like the following example.The > problems is that I get duplicated rows. > > CODPROD N1 N3 N4 > 23 3 55 4 > 24 5 67 36 > 25 3 73 24 > > > > second data frame > > > CODPROD N1 N2 > 30 34 45 > 45 0 78 > 65 0 56 > > > The result that I get its like: > > CODPROD N1 N2 N3 N4 N1.1 > 23 3 NA 55 > 4 3 > 24 5 NA 67 > 36 0 > 25 3 NA 73 > 24 0 > 30 34 45 NA > NA 0 > 45 0 78 NA > NA 0 > 65 0 56 NA > NA . 0 > > So N1.1 is a duplication of N1.I think I could solve the problems by > specifying the same columns but I have a lot of colums which have the same > names in the two dataframe so I think its not the right way to solve it. > > Anyone knows how to avoid duplication?? > -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ 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.
