def normalize(force=false)
super(force)
@reference_lines.each_value do |curr_reference_line|
curr_reference_line[:norm_value] = ((curr_reference_line[:value].to_f - @minimum_value) / @spread.to_f) if (curr_reference_line.key?(:value))
end
@data.each_with_index do |data_row, index|
norm_x_data_points = []
if data_row[DATA_VALUES_X_INDEX] != nil
data_row[DATA_VALUES_X_INDEX].each do |x_data_point|
norm_x_data_points << ((x_data_point.to_f - @minimum_x_value.to_f) /
(@maximum_x_value.to_f - @minimum_x_value.to_f))
end
@norm_data[index] << norm_x_data_points
end
end
end