Expression Heatmap with Ancestry and Group Split — plot_expression

Generates a z-scored expression heatmap with samples split by combined ancestry and group, and annotations for ancestry and group using ComplexHeatmap.

Usage

plot_expression_heatmap(
  X,
  Y,
  MX,
  MY,
  a_col,
  g_col,
  features = NULL,
  title = NULL,
  x_label = NULL,
  y_label = NULL,
  file = NULL,
  width = 8,
  height = 8
)

Arguments

X: Expression matrix for the first ancestry.
Y: Expression matrix for the second ancestry.
MX: Metadata for X.
MY: Metadata for Y.
a_col: Name of the column in metadata that defines ancestry.
g_col: Name of the column in metadata that defines groups.
features: Optional vector of feature names to plot. Defaults to the first 9 features.
title: Optional heatmap title.
x_label: Optional label for the color legend.
y_label: Optional label for the row axis.
file: Optional file path to save the plot (PDF, PNG, JPEG, or TIFF).
width: Plot width in inches (default = 8).
height: Plot height in inches (default = 8).

Value

Invisibly returns NULL. Called for its side effect of drawing or saving a heatmap.