comparing character vectors

[Dave Evens <devens8765@yahoo.com>]

Dear all,

I would like to compare to 2 character vectors, where
one is a subset of the other. For example, suppose

x <- LETTERS[1:20]
and
y <- c("E", "H", "N", "Q", "R")

I would like to know where the elements of y occur in
x, i.e. in this example

5 8 14 17 18

Is there a command that does this?

Thanks in advance for any help.

Dave

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