Fig. 6
From: A comparison of BeadChip and WGS genotyping outputs using partial validation by sanger sequencing
Example calculation of confusion matrices. The shown dimensionality reduction is used for accuracy and other metrics calculation; a, b, c, d, …, ai, aj — sample counts of each class; A/A, A/B, B/B, A/C, B/C, C/C — diploid genotypes observed in data; A — reference allele, B and C — alternative alleles. TRUTH — a call set produced by an orthogonal method (comparator), TEST — a call set produced by a test method