Thanks David! I tried this but didn't work. Got a bunch of warning messages: Warning messages: 1: In `[<-.factor`(`*tmp*`, i, value = 1:52) :
On 4 May 2017 at 02:23, David Winsemius <dwinsem...@comcast.net> wrote: > >> 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.
