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Compare Community Structures

Source: R/communities.R
compare_communities.Rd

Compares two partitions of the same nodes with igraph's partition comparison measures.

Usage

compare_communities(
  comm1,
  comm2,
  method = c("vi", "nmi", "split.join", "rand", "adjusted.rand")
)

Arguments

comm1, comm2

Partitions to compare. Each is a cograph_communities data frame, an igraph communities object or a membership vector.

method

Comparison measure, one of "vi" (default; variation of information), "nmi" (normalized mutual information), "split.join" (split-join distance), "rand" (Rand index) or "adjusted.rand" (adjusted Rand index).

Value

A single numeric value. "vi" and "split.join" are distances (0 for identical partitions); "nmi", "rand" and "adjusted.rand" are similarities (1 for identical partitions).

Examples

walktrap <- community_walktrap(regulation_net)
fast_greedy <- community_fast_greedy(regulation_net)
compare_communities(walktrap, fast_greedy, method = "nmi")
#> [1] 1