Apply Layout to Network

Apply a layout algorithm to compute node positions.

Usage

sn_layout(network, layout, seed = 42, ...)

Arguments

network

A cograph_network object, matrix, data.frame, or igraph object. Matrices and other inputs are auto-converted.

layout

Layout algorithm name (see Details), a two-letter or full igraph layout name, an igraph layout function, a CographLayout object, or a coordinate matrix / data frame with one row per node and x, y in its first two columns. Anything else is an error.

seed

Random seed for deterministic layouts. Default 42. Set NULL for random.

...

Additional arguments passed to the layout function.

Value

The cograph_network with node coordinates in the x and y columns of its node table.

Details

Built-in Layouts

"spring"

Force-directed layout (Fruchterman-Reingold).

"oval"/"ellipse"

Nodes arranged around an ellipse.

"circle"

Nodes arranged in a circle.

"groups"

Circular layout with grouped nodes clustered together.

"grid"

Nodes in a regular grid.

"random"

Random positions.

"star"

Central node with others arranged around it.

"bipartite"

Two-column layout for bipartite networks.

"gephi"/"gephi_fr"

Gephi-style force-directed layout.

igraph Layouts

Two-letter codes for igraph layouts: "kk" (Kamada-Kawai), "fr" (Fruchterman-Reingold), "drl", "mds", "ni" (nicely), "tr" (tree), "ci" (circle), etc.

igraph layout functions and full igraph layout names such as "layout_with_kk" are also accepted.

See also

cograph for network creation, sn_nodes for node customization, sn_edges for edge customization, sn_theme for visual themes, splot and soplot for plotting

Examples

cograph(regulation_net) |> sn_layout("circle") |> splot()