True positives, false positives, and accuracy for increasing values of M.A.Q. Graphs for true positives and false positives are in absolute numbers, while accuracy is on a scale from zero to one. (Accuracy is defined as (true positives)/((total SNP no.) + (false positives)). One equals perfect accuracy.) False positive graphs for 'SNP frequency = 1%' and 'all SNP freq. together' are on a logarithmic scale. For false positive graphs, any false positives within +/-1% of the specified frequency are included in the graph.