Fig. 1

Signature matrix generation a t-SNE plot showing distinct clusters of methylation profiles of the pure reference cell types used to generate signature matrix. b Heatmap generated by all selected probes of signature matrix. c Scatterplot showing the estimated CIBERSORT cancer fraction (N = 4052) correlates significantly with purity (Estimate purity; R = 0.59; p value < 2.2 × 10–16, Absolute purity; R = 0.76; p value < 2.2 × 10–16)