layout_spectral function

spectral graph layouts

Using a set of eigenvectors of matrices associated with a graph as coordinates

layout_with_eigen(g, type = "laplacian", ev = "smallest")

layout_igraph_eigen(g, type = "laplacian", ev = "smallest", circular)

Arguments

• g: igraph object
• type: matrix to be used for spectral decomposition. either 'adjacency' or 'laplacian'
• ev: eigenvectors to be used. Either 'smallest' or 'largest'.
• circular: not used

Returns

matrix of xy coordinates

Details

The layout_igraph_* function should not be used directly. It is only used as an argument for plotting with 'igraph'. 'ggraph' natively supports the layout.

Examples

library(igraph)

g <- sample_gnp(50, 0.2)

xy <- layout_with_eigen(g, type = "adjacency", ev = "largest")

xy <- layout_with_eigen(g, type = "adjacency", ev = "smallest")

xy <- layout_with_eigen(g, type = "laplacian", ev = "largest")

xy <- layout_with_eigen(g, type = "laplacian", ev = "smallest")

Author(s)

David Schoch