-}
-\description{
- This function computes the relative frequencies (i.e. proportions) of
- the four DNA bases (adenine, cytosine, guanine, and thymidine) from a
- sample of sequences.
+ \item{all}{a logical; by default only the counts of A, C, G, and T are
+ returned. If \code{all = TRUE}, all counts of bases, ambiguous codes,
+ missing data, and alignment gaps are returned.}