## untested last <- tail(x, n = 1) first <- head(x, n = length(x) - 1)
Erin Hodgess wrote:
Dear R People: Here is a toy example:x <- c("2E","5W","12H") substr(x,2,2)[1] "E" "W" "2" Sometimes x has 3 elements, sometimes 2. I want to extract the last element, and then extract the other 1 or 2 elements. How can I do this, please? TIA, Sincerely, Erin
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