Fig. 5
From: Stochastic epigenetic outliers can define field defects in cancer
Types of differential variability. a Simulated examples of different types of DV arising in DNAm studies, with y-axis labelling the DNAm fraction. The horizontal dashed lines indicate the mean in each phenotype. Phenotype is labelled by a different color. P-values from a t-test (TT), a Wilcoxon rank sum test (WT) and Bartlett’s test (BT) are given. Bartlett’s test is a test for differential variance. b Real data examples of the types of DV shown in (a). The horizontal dashed lines indicate the mean in each phenotype. Phenotype is labelled by a different color. N = normal, CIN2 + =cervical intraepithelial neoplasia of grade 2 or higher (non-invasive), CC = cervical cancer (invasive). P-values from a t-test (TT), a Wilcoxon rank sum test (WT) and Bartlett’s test (BT) are given. Bartlett’s test is a test for differential variance