require 'nano/string/to_arr'
require 'nano/enumerable/probability'

class String

  def probability(*args)
    to_arr(*args).probability
  end

end


#  _____         _
# |_   _|__  ___| |_
#   | |/ _ \/ __| __|
#   | |  __/\__ \ |_
#   |_|\___||___/\__|
#
=begin test

  require 'test/unit'

  class TCString < Test::Unit::TestCase

    def test_probability
      assert_equal( {'a'=>0.5,'b'=>0.5}, "ab".probability )
      assert_equal( {'tom'=>0.5,'boy'=>0.5}, "tom boy".probability(:word) )
      assert_equal( {'tom'=>0.5,'boy'=>0.5}, "tom\nboy".probability(:line) )
    end

  end

=end