View source: R/data_cleaners.R
duplicated_including_first | R Documentation |
Determine duplicate elements (including the first duplicate)
duplicated_including_first(x, ..., fromLast = NULL)
x |
A vector, data.frame, an array, or NULL. |
... |
Passed to |
fromLast |
Ignored (included as an argument to prevent passing to
|
A vector the same length as the return from duplicated
with
the first duplicated value also flagged rather than just values from the
second to the last (as is returned from duplicated
).
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