Hi Andrew, Perhaps you did not notice my previous email. The answer is still the same (see below):
On Wed, Sep 22, 2010 at 1:48 PM, AndrewPage <savejar...@yahoo.com> wrote: > > How about this: > > > s = c("aa", "bb", "cc", "", "aa", "dd", "", "aa") > > n = c(2, 3, 5, 6, 7, 8, 9, 3) > > b = c(TRUE, FALSE, TRUE, TRUE, FALSE, TRUE, TRUE, FALSE) > > df = data.frame(n, s, b) # df is a data frame > > > I want to display df with no value in s occurring more than once. df <- df[!duplicated(df$s),] Also, I > want to delete the rows where s contains "". Same idea here: df[s != "",] -Ista > -- > View this message in context: > http://r.789695.n4.nabble.com/Unique-subsetting-question-tp2550453p2550769.html > Sent from the R help mailing list archive at Nabble.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. > -- Ista Zahn Graduate student University of Rochester Department of Clinical and Social Psychology http://yourpsyche.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.