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  \code{\link{array}}s, the result corresponds to \code{x[.., drop=FALSE]}.
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  \code{\link{array}}s, the result corresponds to \code{x[.., drop=FALSE]}.
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  For \code{\link{ftable}} objects \code{x}, a transformed \code{format(x)}.
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  For \code{\link{ftable}} objects \code{x}, a transformed \code{format(x)}.
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}
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}
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\note{
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\note{
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  For array inputs the output of \code{tail} when \code{keepnums} is \code{TRUE},
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  For array inputs the output of \code{tail} when \code{keepnums} is \code{TRUE},
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  any dimnames vectors added for dimensions \code{>2} are the original
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  any dimnames vectors added for dimensions \eqn{>2} are the original
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  numeric indices in that dimension \emph{as character vectors}.  This
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  numeric indices in that dimension \emph{as character vectors}.  This
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  means that, e.g., for 3-dimensional array \code{arr},
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  means that, e.g., for 3-dimensional array \code{arr},
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  \code{tail(arr, c(2,2,-1))[ , , 2]} and
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  \code{tail(arr, c(2,2,-1))[ , , 2]} and
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  \code{tail(arr, c(2,2,-1))[ , , "2"]} may both be valid but have
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  \code{tail(arr, c(2,2,-1))[ , , "2"]} may both be valid but have
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  completely different meanings.
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  completely different meanings.