[R] how to keep keep matching column in output of merge
How do I keep the linking column[s] in a merge()? I need to use the values again in a further merge. thanks Nevil Amos __ 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.
Re: [R] how to keep keep matching column in output of merge
Nevil Amos nevil.amos at gmail.com writes: How do I keep the linking column[s] in a merge()? I need to use the values again in a further merge. simple reproducible example please? (e.g. make up a couple of 4-row datasets that show what you want, what you are trying, and what you are getting instead). __ 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.
Re: [R] how to keep keep matching column in output of merge
Hi Nevil, We really need an example here of what you're doing, since merge() does keep the id column by default. x - data.frame(id = c(a, b, c, d), x=c(1,2,3,4)) y - data.frame(id = c(b, a, d, c), y=c(101, 102, 103, 104)) merge(x, y) id x y 1 a 1 102 2 b 2 101 3 c 3 104 4 d 4 103 Sarah On Tue, Jan 4, 2011 at 8:31 AM, Nevil Amos nevil.a...@gmail.com wrote: How do I keep the linking column[s] in a merge()? I need to use the values again in a further merge. thanks Nevil Amos -- 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.
Re: [R] how to keep keep matching column in output of merge
Apologies, it is there! On 5/01/2011 1:26 AM, Sarah Goslee wrote: Hi Nevil, We really need an example here of what you're doing, since merge() does keep the id column by default. x- data.frame(id = c(a, b, c, NA), x=c(1,2,3,4)) y- data.frame(id1 = c(NA, a, d, c), y=c(101, 102, 103, 104)) merge(x, y) id x y 1 a 1 102 2 b 2 101 3 c 3 104 4 d 4 103 Sarah On Tue, Jan 4, 2011 at 8:31 AM, Nevil Amosnevil.a...@gmail.com wrote: How do I keep the linking column[s] in a merge()? I need to use the values again in a further merge. thanks Nevil Amos __ 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.
