Dear all, I'm trying to find a a way to remove certain fields belonging to the same group from a data frame structure.
I have a data frame like this: foo v1 v2 v3 1 1 a 6 2 a 3 8 a 4 4 b 4 4 b 2 1 c 1 6 d Each row can then be grouped according to the third column: a, b, c, d. Then I would like to remove all fields that belong to a group with less than X members, for example less than 3 members, then the resulting data frame structure would look like: foo v1 v2 v3 1 1 a 6 2 a 3 8 a Is there some simple way to do this in R? Thanks in advance. /Oscar [[alternative HTML version deleted]] ______________________________________________ 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.