> On May 3, 2017, at 11:24 AM, Davide Piffer <pifferdav...@gmail.com> wrote: >
You should look at this result more closely. Its length is not the same length as the number of rows of the target of the attempted assignment. > unlist(miniblock_cong) You might try: red_congruent$miniblock <- ave( red_congruent$subject_nr, red_congruent$subject_nr, FUN=seq_along) `ave` is very useful for delivering vectors with length equal to nrow of a dataframe. Do remember to name the FUN parameter (although I still usually forget). -- David Winsemius Alameda, CA, USA ______________________________________________ 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.
