Given the following R statements
v <- c('a', 'a', 'a', 'b', 'b', 'b', 'c', 'c', 'c', 'c')
ave(v, list(v), FUN=seq_along)
[1] "1" "2" "3" "1" "2" "3" "1" "2" "3" "4"
I was expecting to get a numeric vector back. I apparently have missed
something in the documentation. If vector v is character, then the numeric
sequence is converted to character before returning. I can work around by
doing something like
ave(seq_along(v), list(v), FUN=seq_along)
[1] 1 2 3 1 2 3 1 2 3 4
Is the work around the best way to go, or have I missed an option in the
documentation?
Thanks,
Dan
Daniel Nordlund, PhD
Research and Data Analysis Division
Services & Enterprise Support Administration
Washington State Department of Social and Health Services
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