This function computes the relative frequencies (i.e. percentages) of
the four DNA bases (adenine, cytosine, guanine, and thymidine) from a
sample of sequences.
Usage
base.freq(x)
Arguments
x
a vector, a matrix, a data frame, or a list which contains
the DNA 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.