Frequency of indicidual nucleotide
y = btd_basecomp(x1, x2)
String of single-letter codes specifying a DNA sequence
Nucleotide Base
Frequency of given nucleotide base (positive decimal integer).
Computes frequency of indicidual nucleotide
y = btd_basecomp(x1, x2)
count the number of nucleotide x2 in
the given DNA sequence x1.