
Detect sequential duplicates
sequential_duplicates(strings, ordering = NULL)
Character vector
Optional: treat strings as if ordered like strings[ordering], or, if a function, strings[ordering(strings)]
A logical vector which indicates if a string is identical to the previous string.
# NOT RUN {
# return c(F, T, F, T, T, F)
sequential_duplicates(c("a", "a", "b", "b", "b", "a"))
# }
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