[R] Obtaining replicates numbers of a vector

From: Eric Lecoutre <ericlecoutre_at_gmail.com>
Date: Wed, 19 Dec 2007 11:36:57 +0100

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 Lecoutre
Consultant - Business & Decision
Business Intelligence & Customer Intelligence

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Received on Wed 19 Dec 2007 - 10:40:15 GMT

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