Figure 5.

Comparison of LifeTrace error rate to Phred error rate in subsets of chromatograms grouped according to quality of the chromatogram. Quality is expressed as the maximum allowed number of basecall errors made by either LifeTrace or Phred, that is, max(LifeTrace_errors, Phred_errors). For example, chromatograms for which both LifeTrace and Phred generate fewer than five basecall errors can be considered high-quality chromatograms. As the graph shows, LifeTrace outperforms Phred in a set of chromatograms for which Phred generates many errors but LifeTrace makes few. Error rates are normalized by the number of Phred errors (i.e., Phred is the horizontal line at relative error rate 1). Broken lines correspond to the cumulative sum of the number of chromatograms normalized by the total number of chromatograms in the set at a given error threshold with the color code matching the legend colors.