def init_daru_vector(data, options)
      options[:using] ||= get_daru_columns(data, 2)
      options[:title] ||= data.name
      init_default(data, options)
    end
def init_daru_vector(data, options)
      options[:using] ||= get_daru_columns(data, 2)
      options[:title] ||= data.name
      init_default(data, options)
    end
Initialize Dataset from given Daru::Vector