As always, a reprex would considerably improve the chances of a useful reply... See the posting guide linked below.
Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) On Sun, Jun 13, 2021 at 2:28 PM Gregg Powell via R-help < r-help@r-project.org> wrote: > This is even complicated to write into a question.... > > Have two data.frames (A and B) > > data.frame A and B each have a name column. Want to compare A and B > data.frame to each other based on the values in the 'names' columns - for > every name that appears in dataframe A but not B, I want to copy the > corresponding rows to a third dataframe C, and for every name that appears > in B but not A, I want to copy the corresponding rows to a fourth dataframe > D. I can then row bind the dataframes C and D together and get a complete > list of all the rows that were missing in either A or B. > > try as I might - I can't get this to work. Can someone help P-L-E-A-S-E!!!! > > Thanks, > Gregg Powell > AZ, USA______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.