Sha256: f8a3916f5ef986ad7e312b85cd23acb84ff2ea5b57d964c06d6de96b32dbe8bf
Contents?: true
Size: 704 Bytes
Versions: 326
Compression:
Stored size: 704 Bytes
Contents
defmodule NucleotideCount do
@nucleotides [?A, ?C, ?G, ?T]
@doc """
Counts individual nucleotides in a NucleotideCount strand.
## Examples
iex> NucleotideCount.count('AATAA', ?A)
4
iex> NucleotideCount.count('AATAA', ?T)
1
"""
def count(strand, nucleotide) when nucleotide in(@nucleotides) do
Enum.count strand, &(&1 == nucleotide)
end
def count(_strand, _nucleotide), do: raise ArgumentError
@doc """
Returns a summary of counts by nucleotide.
## Examples
iex> NucleotideCount.nucleotide_counts('AATAA')
%{?A => 4, ?T => 1, ?C => 0, ?G => 0}
"""
def histogram(strand) do
Enum.map(@nucleotides, &{&1, count(strand, &1)}) |> Enum.into(%{})
end
end
Version data entries
326 entries across 326 versions & 1 rubygems