When I do that, I get "Error in `$<-.data.frame`(`*tmp*`, "site", value = integer(0)) : replacement has 0 rows, data has 6”
The data frame has 6 rows. Ken kmna...@gmail.com 914-450-0816 (tel) 347-730-4813 (fax) > On Mar 3, 2016, at 4:52 PM, Hervé Pagès <hpa...@fredhutch.org> wrote: > > Hi, > > On 03/03/2016 12:18 PM, KMNanus wrote: >> I have a factor variable that is 6 digits and hyphenated. For example, >> 001-014. >> >> I need to extract the first 3 digits to a new variable using mutate in dplyr >> - in this case 001 - but can’t find a function to do it. >> >> substr will do this for character strings, but I need the variable to remain >> as a factor. > > What prevents you from calling as.factor() on the result to turn it > back into a factor? > > H. > >> >> Is there an R function or workaround to do this? >> >> >> Ken >> kmna...@gmail.com >> 914-450-0816 (tel) >> 347-730-4813 (fax) >> >> >> >> ______________________________________________ >> 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. >> > > -- > Hervé Pagès > > Program in Computational Biology > Division of Public Health Sciences > Fred Hutchinson Cancer Research Center > 1100 Fairview Ave. N, M1-B514 > P.O. Box 19024 > Seattle, WA 98109-1024 > > E-mail: hpa...@fredhutch.org > Phone: (206) 667-5791 > Fax: (206) 667-1319 ______________________________________________ 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.
