plot_signal: Plot a Signal on Top of a Given Graph

In gasper: Graph Signal Processing

Plot a Signal on Top of a Given Graph

Description

Visualize a signal over a graph.

Usage

plot_signal(z, f, size = 0.75, limits = range(f), ...)

Arguments

z	A list containing graph data. This list must have the following components: sA An adjacency matrix or a sparse Matrix representation of the graph. xy A matrix or dataframe containing the x and y coordinates of each node in the graph.
f	Signal to plot.
size	Numeric. Dot size for nodes. Default is 0.75.
limits	Set colormap limits.
...	Additional arguments passed to guide_colourbar to customize the colorbar appearance (see ?guide_colourbar for more details).

Details

This function allows visualization of a graph signal f superimposed on the structure of a graph defined by z. It offers an intuitive way to analyze the behavior of graph signals in the vertex domain. The appearance of the colorbar can be customized by passing additional arguments that are available for ggplot2::guide_colourbar.

Note

If node coordinates xy are not provided, they will be calculated using spectral methods spectral_coords. For large graphs, this can be computationally intensive and may take significant time. Use with caution for large graphs if node coordinates are not supplied.

See Also

plot_graph, spectral_coords

Examples

f <- rnorm(length(grid1$xy[,1]))
plot_signal(grid1, f)

gasper documentation built on May 29, 2024, 8:32 a.m.