On Thu, Jul 23, 2015 at 3:56 PM, maxbre <mbres...@arpa.veneto.it> wrote: > Hi > > thank you for your reply: it's a neat solution but unfortunately not > applicable to my specific case;
I'm going to assume you're replying to me, although there's no context whatsoever in your response (this is the R-help email list, not Nabble). > in fact as I specified in my first post (I may have been not enough clear, > sorry for that!) I can not rely on any search method grep-like because the > value "xxx" in the rows of "df_start" can be anything (string or numeric and > always different) so that I necessarely need to apply by row index position > (i.e. in my reproducible example rows: 2, 3, 5); Then how do you know which positions? Do you have another R object that specifies row and column number? Or do you guess? I can easily remove a random element from each row... If you aren't removing based on value, then you didn't provide a reproducible example after all, and you need to supply the index for removal. Always different? Different within a single data frame? Different between data frames? (Then you can simply change "xxx" to "whatever".) Is telepathy required? Or perhaps precognition? > thank you again for your kind help but still searching for a solution... > > best -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ 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.
