plot_mtna: Multi-Cluster TNA Network Plot

In cograph: Analysis and Visualization of Complex Networks

Multi-Cluster TNA Network Plot

Description

Visualizes multiple network clusters with summary edges between clusters and individual edges within clusters. Each cluster is displayed as a shape (circle, square, diamond, triangle) containing its nodes.

Usage

plot_mtna(
  x,
  cluster_list = NULL,
  community = NULL,
  layout = "circle",
  spacing = 4,
  shape_size = 1.8,
  node_spacing = 0.5,
  colors = NULL,
  shapes = NULL,
  edge_colors = NULL,
  bundle_edges = TRUE,
  bundle_strength = 0.8,
  summary_edges = TRUE,
  aggregation = c("sum", "mean", "max", "min", "median", "density"),
  within_edges = TRUE,
  show_border = TRUE,
  legend = TRUE,
  legend_position = "topright",
  curvature = 0.3,
  node_size = 3,
  layout_margin = 0.15,
  scale = 1,
  show_labels = FALSE,
  nodes = NULL,
  label_size = NULL,
  label_abbrev = NULL,
  cluster_shape = NULL,
  ...
)

mtna(
  x,
  cluster_list = NULL,
  community = NULL,
  layout = "circle",
  spacing = 4,
  shape_size = 1.8,
  node_spacing = 0.5,
  colors = NULL,
  shapes = NULL,
  edge_colors = NULL,
  bundle_edges = TRUE,
  bundle_strength = 0.8,
  summary_edges = TRUE,
  aggregation = c("sum", "mean", "max", "min", "median", "density"),
  within_edges = TRUE,
  show_border = TRUE,
  legend = TRUE,
  legend_position = "topright",
  curvature = 0.3,
  node_size = 3,
  layout_margin = 0.15,
  scale = 1,
  show_labels = FALSE,
  nodes = NULL,
  label_size = NULL,
  label_abbrev = NULL,
  cluster_shape = NULL,
  ...
)

Arguments

x	A tna object, weight matrix, cograph_network, or cluster_summary object.
cluster_list	Clusters can be specified as: A list of character vectors (node names per cluster) A string column name from nodes data (e.g., "groups") NULL with community specified for auto-detection
community	Community detection method to use for auto-clustering. If specified, overrides cluster_list. See detect_communities for available methods: "louvain", "walktrap", "fast_greedy", "label_prop", "infomap", "leiden".
layout	How to arrange the clusters: "circle" (default), "grid", "horizontal", "vertical".
spacing	Distance between cluster centers. Default 4.
shape_size	Size of each cluster shape (shell radius). Default 1.8.
node_spacing	Radius for node placement within shapes (0-1 relative to shape_size). Default 0.5.
colors	Vector of colors for each cluster. Default auto-generated.
shapes	Vector of shapes for each cluster: "circle", "square", "diamond", "triangle". Default cycles through these.
edge_colors	Vector of edge colors by source cluster. Default auto-generated.
bundle_edges	Logical. Bundle inter-cluster edges through channels. Default TRUE.
bundle_strength	How tightly to bundle edges (0-1). Default 0.8.
summary_edges	Logical. Show aggregated summary edges between clusters instead of individual node edges. Default TRUE.
aggregation	Method for aggregating edge weights between clusters: "sum" (total flow), "mean" (average strength), "max" (strongest link), "min" (weakest link), "median", or "density" (normalized by possible edges). Default "sum". Only used when summary_edges = TRUE.
within_edges	Logical. When summary_edges is TRUE, also show individual edges within each cluster. Default TRUE.
show_border	Logical. Draw a border around each cluster. Default TRUE.
legend	Logical. Whether to show legend. Default TRUE.
legend_position	Position for legend. Default "topright".
curvature	Edge curvature. Default 0.3.
node_size	Size of nodes inside shapes. Default 3.
layout_margin	Margin around the layout as fraction of range. Default 0.15.
scale	Scaling factor for spacing parameters. Use scale > 1 for high-resolution output (e.g., scale = 4 for 300 dpi). This multiplies spacing and shape_size to maintain proper proportions at higher resolutions. Default 1.
show_labels	Logical. Show node labels inside clusters. Default FALSE.
nodes	Node metadata. Can be: NULL (default): Use existing nodes data from cograph_network Data frame: Must have label column for matching; if labels column exists, uses it for display text Display priority: labels column > label column (identifiers).
label_size	Label text size. Default NULL (auto-scaled).
label_abbrev	Label abbreviation: NULL (none), integer (max chars), or "auto" (adaptive based on node count).
cluster_shape	Shape for cluster summary nodes when using summary view. Can be single value or vector. Overrides shapes. Default NULL (use shapes).
...	Additional parameters passed to plot_tna().

Value

Invisibly returns a cluster_summary object for summary mode, or the plot_tna result otherwise.

See plot_mtna.

See Also

cluster_summary, plot_mcml

Examples

## Not run: 
# Create network with 4 clusters
nodes <- paste0("N", 1:20)
m <- matrix(runif(400, 0, 0.3), 20, 20)
diag(m) <- 0
colnames(m) <- rownames(m) <- nodes

clusters <- list(
  North = paste0("N", 1:5),
  East = paste0("N", 6:10),
  South = paste0("N", 11:15),
  West = paste0("N", 16:20)
)

# Summary edges between clusters + individual edges within
plot_mtna(m, clusters, summary_edges = TRUE)

# With node labels
plot_mtna(m, clusters, show_labels = TRUE, label_abbrev = 3)

# Control spacing and sizes
plot_mtna(m, clusters, spacing = 4, shape_size = 1.5, node_spacing = 0.6)

## End(Not run)
## Not run: 
nodes <- paste0("N", 1:12)
m <- matrix(runif(144, 0, 0.3), 12, 12)
diag(m) <- 0
colnames(m) <- rownames(m) <- nodes
clusters <- list(C1 = nodes[1:4], C2 = nodes[5:8], C3 = nodes[9:12])
mtna(m, clusters)

## End(Not run)

cograph documentation built on April 1, 2026, 1:07 a.m.