Hello Moohwan, Look at ?duplicated for example:
> x [1] 1 1 2 2 3 3 > duplicated(x) [1] FALSE TRUE FALSE TRUE FALSE TRUE If your end goal is to get rid of the duplicates, take a look at ?unique > unique(x) [1] 1 2 3 Best Regards, Josh On Mon, Jul 5, 2010 at 9:31 AM, Moohwan Kim <kmhl...@gmail.com> wrote: > Dear R family, > > I have a question about how to detect some duplicate numeric observations. > Suppose that I have two variables dataset. > > order value > 1 0.52 > 2 0.23 > 3 0.43 > 4 0.21 > 5 0.32 > 6 0.32 > 7 0.32 > 8 0.32 > 9 0.32 > 10 0.12 > 11 0.46 > 12 0.09 > 13 0.32 > 14 0.25 > ; > Could you help me indicate where the duplicate observations in a row > (e.g., 0.32) are? > > best, > moohwan > > ______________________________________________ > 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. > -- Joshua Wiley Ph.D. Student, Health Psychology University of California, Los Angeles http://www.joshuawiley.com/ ______________________________________________ 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.
