| Function absFreqOfLettersInSeq Counts the number of times each residue of a fixed sequence alphabet occurs in a given sequence. absFreqOfLettersInSeq(frequencies,begin,end) Parameters
frequencies | The FrequencyDistribution object which will hold the calculated frequencies. Types: FrequencyDistribution
begin | An iterator pointing to the beginning of a given sequence which is either a string of Dna or a string of AminoAcid. Types: DnaIterator, Iterator, PeptideIterator
end | An iterator pointing to the end of a given sequence which is either a string of Dna or a string of AminoAcid. Types: DnaIterator, Iterator, PeptideIterator
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