ChIP-seq / ATAC-seq Peak Caller (2D)

This 2D top-down companion renders the same genomic read-pileup track as the 3D peak caller — a flat, pannable bar chart instead of a 3D bar field. Reads are sampled from a Poisson process with a controllable background rate and binding-site enrichment, and the same local-background significance test MACS2 uses decides which bins count as a real peak. Tune enrichment, background depth, sequencing depth and the −log₁₀(p) threshold and watch true positives, missed sites and false positives light up in different colors, with live sensitivity and false-discovery-rate readouts. Drag to pan the track and scroll to zoom into individual bins.