base.freq: Base frequencies from DNA Sequences
Description
This function computes the relative frequencies (i.e. percentages) of
the four DNA bases (adenine, cytosine, guanine, and thymidine) from a
sample of sequences.Value
A table of relative frequencies with the names "a", "c",
"g", and "t".Details
The base frequencies are computed over all sequences in the
sample. All missing or unknown sites are discarded from the
computations.