All:
I did not want to bother R folks for an R Bugzilla account, so I'll just
note what appears to be a documentation bug here
In R version 4.0.3, ?anyDuplicated says:
"anyDuplicated(.) is a ?generalized? more efficient shortcut for
any(duplicated(.)).
However, anyDuplicated returns an integer and any(duplicated) -- that is
any() -- returns a logical. I was bitten by this by a function expecting a
logical from anyDuplicated.
I realize that there are scare quotes around "generalized", which would
indicate that anyDuplicated and any(duplicated(.)) aren't identical.
However, I believe that the line above (especially 'shortcut') leads one to
expect that both return a logical. A simple addition such as: "Note,
however, that any() returns a logical and anyDuplicated's returns an
integer' would avoid the confusion.
Best to all,
Bert