Count nucleotides in a amino acid sequence
y = btd_basecount(x)
String of codes specifying a nucleotide sequence
A, T, G, C with their counts (column of text)
y = btd_basecount(x)
counts the number of all individual aminoacid
in the given aminoacid sequence x.
--> y = btd_basecount("AATGCTTGGAA") y = !A : 4 ! !T : 3 ! !G : 3 ! !C : 1 !