Fig. 2From: DNA methylation-based sex classifier to predict sex and identify sex chromosome aneuploidyA sex classifier is constructed by applying two PCAs on two sex chromosomes separately. a The first two components on ChrX. b The first two components on ChrY. Results of c training set and d validation set produced by the sex classifier, all samples are classified into four categories: 46XY, 46XX, 47XXY, and 45XOBack to article page