SCOREplus function

community detection method called SCORE+

SCOREplus(A, k, c = 0.1, r = NULL)

Arguments

• A: n-by-n binary symmtric adjacency matrix.
• k: number of communities (>1).
• c: (optional) tuning parameter for Graph Laplacian, default is 0.1.
• r: (optional) latent dimension (>1), if not given, chosen between k and k+1 determined by eigen gap

Returns

A list containing

• label: Predicted community labels
• ratios: n-by-(K-1) or n-by-r ratio matrix.
• delta: calculated delta parameter
• eig.vec: Top r eigen vectors
• eig.val: Top r eigen values

Examples

library(igraphdata)
library(igraph)
data('karate')
A = get.adjacency(karate)
karate.plus.out = SCOREplus(A, 2)
karate.plus.out$labels