is.dup | R Documentation |
labels which vectors in x are part of a dup returns logical TRUE if vector is part of a dup
Note: this is a twist on "duplicated" which only returns TRUE if a given element is a duplicate (i.e. duplicated () is FALSE for the original version for the duplicate, while is.dup() will be TRUE for that element)
x can be vector or matrix
is.dup(x)
x |
vector or matrix to check |
logical vector of length(x) or nrow(x)
Marcin Imielinski
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