def sort_norm_data
      @norm_data =
          @norm_data.sort_by { |a| -a[DATA_VALUES_INDEX].inject(0) { |sum, num| sum + num.to_f } }
    end
def sort_norm_data
      @norm_data =
          @norm_data.sort_by { |a| -a[DATA_VALUES_INDEX].inject(0) { |sum, num| sum + num.to_f } }
    end
Sort with largest overall summed value at front of array so it shows up
 correctly in the drawn graph.