Sha256: bee104ace152ffa987358b7dec1fe00b5228bd805c3c3985615121c1235fd0e5
Contents?: true
Size: 648 Bytes
Versions: 86
Compression:
Stored size: 648 Bytes
Contents
package dna
import (
"errors"
"strings"
)
// DNA is a list of nucleotides
type DNA string
type Histogram map[byte]int
const validNucleotides = "ACGT"
// Counts generates a histogram of valid nucleotides in given DNA.
// Returns error if DNA contains invalid nucleotide.
func (dna DNA) Counts() (Histogram, error) {
var total int
result := make(Histogram)
for i := range validNucleotides {
nucleotide := validNucleotides[i]
result[nucleotide] = strings.Count(string(dna), string(nucleotide))
total += result[nucleotide]
}
if total != len(dna) {
return nil, errors.New("dna: contains invalid nucleotide")
}
return result, nil
}
Version data entries
86 entries across 86 versions & 1 rubygems