Volcano plot of DE results — plot_volcano • coMMpass

Creates a ggplot2 volcano plot with significance thresholds and optional gene labels.

Usage

plot_volcano(
  de_results,
  lfc_threshold = 1,
  padj_threshold = 0.05,
  n_label = 10L,
  title = "Volcano Plot"
)

Arguments

de_results: Data frame with DE results (must have padj and log2FC columns – auto-detected from DESeq2/edgeR/limma conventions)
lfc_threshold: Log2 fold-change threshold for significance (default 1)
padj_threshold: Adjusted p-value threshold (default 0.05)
n_label: Number of top genes to label (default 10)
title: Plot title

Value

A ggplot2 object

See also

Other differential-expression: compute_pca(), plot_heatmap_de(), plot_ma(), plot_pca(), run_deseq2(), run_vst(), summarize_de_methods()