Fig. 3From: Immune repertoire fingerprinting by principal component analysis reveals shared features in subject groups with common exposuresPCA provides better discrimination between donor cohorts than an alternate method. a. The Repertoire Dissimilarity Index from Bolen, et al. [17] was calculated for all pairs of donors within both the healthy and HIV/Flu cohorts and for inter-cohort pairs. b. The Euclidean distance between principal components (PC) 1 + 2 was calculated for the same intra- and inter-cohort pairs. Boxes show the interquartile range of data, with the median shown in blue, and whiskers show the full range of data. Significance was calculated using a two-sided Mann-Whitney rank testBack to article page