Method: Bio::Sequence::Common#composition

Defined in:
lib/bio/sequence/common.rb

#composition ⇒ Object

Returns a hash of the occurrence counts for each residue or base.

s = Bio::Sequence::NA.new('atgc')
puts s.composition              #=> {"a"=>1, "c"=>1, "g"=>1, "t"=>1}
Returns

Hash object



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# File 'lib/bio/sequence/common.rb', line 215

def composition
  count = Hash.new(0)
  self.scan(/./) do |x|
    count[x] += 1
  end
  return count
end