- the distances; only two choices are available: \code{"pairwise"},
- and \code{"percentage"}.}
+ the distances; two choices are available: \code{"pairwise"} and
+ \code{"percentage"}, or any unambiguous abbreviation of these.}
+ \item{pairwise.deletion}{a logical indicating whether to delete the
+ columns with missing data on a pairwise basis. The default is to
+ delete the columns with at least one missing observation.}