OK it's actually documented:
The data frame method works by pasting together a character
representation of the rows separated by ‘\r’, so may be imperfect
if the data frame has characters with embedded carriage returns or
columns which do not reliably map to characters.
But w
Hi,
The trick used by duplicated.data.frame() is to transform the supplied
data.frame into a character vector by pasting together the columns using
"\r" as separator. But no precautions are taken to deal with "\r" in
the supplied data.frame. As a consequence it's easy to imagine
situations where
