counting entries in vector
try this:
k <- c("bb", "bb", "bb", "aa", "cc", "cc")
f <- factor(k, levels = unique(k))
as.vector(table(f))
you can put it in one line but it's less readable. I hope it helps.
Best,
Dimitris
axionator wrote:
Hi all,
I've a vector with entries, which are all of the same type, e.g. string:
k <- c("bb", "bb", "bb", "aa", "cc", "cc")
and want to create a second vector containing the number of each entry
in k in the same order as in k, i.e.
c(3, 1, 2)
or:
k <- c(5,5,5,5,2,2,4)
=> c(4,2,1)
thanks
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