MA Plot — bb_ma_plot • bambamR

Creates an MA plot (log2 fold-change vs. mean expression) from differential expression results.

Usage

bb_ma_plot(
  de_result,
  p_cutoff = 0.05,
  point_size = 1,
  colors = c(sig = "#D73027", ns = "grey70")
)

Arguments

de_result: A data.frame with columns gene, log2fc, pvalue, padj, and basemean.
p_cutoff: Numeric. Adjusted p-value cutoff for coloring significant genes. Default 0.05.
point_size: Numeric. Size of points. Default 1.
colors: Named character vector with "sig" and "ns" colors.

Value

A ggplot2::ggplot object.

Examples

de <- data.frame(
  gene = paste0("gene", 1:200),
  log2fc = rnorm(200, 0, 2),
  pvalue = 10^(-runif(200, 0, 5)),
  padj = 10^(-runif(200, 0, 4)),
  basemean = 10^runif(200, 1, 4)
)
bb_ma_plot(de)