You could do: > x <- c('A','B','A','C','C','B') > x [1] "A" "B" "A" "C" "C" "B" > mapply(function(i) sum(x[1:i] == x[i]),1:length(x)) [1] 1 1 2 1 2 2 >
--- Eric Lecoutre <[EMAIL PROTECTED]> wrote: > Dear R-help, > > I am trying to have a generic way to assess the > replicates in a character > vector. > Say that I have the following vector: > > x <- c('A','B','A','C','C','B') > > I would like to obtain: > > replicates <- c(1,1,2,1,2,2) > > each number beeing the time we see the corresponding > value in x. > > Any clever and generic way to obtain that? > > Eric > > > > > -- > Eric Lecoutre > Consultant - Business & Decision > Business Intelligence & Customer Intelligence > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > 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. > ______________________________________________ R-help@r-project.org mailing list 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.