Obtaining replicates numbers of a vector
Try this:
replicate <- vector("numeric", len=length(x))
replicate[order(x)] <- unlist(sapply(rle(sort(x))$lengths, seq_len))
On 19/12/2007, Eric Lecoutre <ericlecoutre at gmail.com> 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
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