?grepl gives you a logical vector for indexing.
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, Apr 28, 2019 at 11:54 AM Graeme Davidson < [email protected]> wrote: > Hello All, > > I can’t find the answer for this so I thought I would ask you lovely > people. > > I have a data frame with a column of names, some of which have > non-alphabetical letters. > > How, do I extract the row indexes which do not meat the criteria of > alphabetical [[:alpha:]]. > > Thanks in advance > > All the best > > Graeme > > > library(dplyr) > my_df <- data.frame(name1 = c("david", "mo", "ma4tilda856", "steph", > "hadley", "574383"), > name2 = c("craig", "salah", "dahl", "paris", "wick", > "turing"), sex = c("m", "m", "f", "f", "m", "m”)) > my_df %>% > mutate_all(as.character) > [[alternative HTML version deleted]] > > ______________________________________________ > [email protected] 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]] ______________________________________________ [email protected] 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.
