deltaModularity: Change in modularity by moving a node

In yishaishimoni/phenoClust: Find clusters by network modularity

Description

Calculates the change in modularity by adding or removing a node to a cluster

Usage

  deltaModularity(G, C, i, newC = NULL, m = sum(G), Kj=rowSums(G))

Arguments

G	a symmetric N-by-N numeric matrix representing the weights of edges between the N nodes
C	a vector of length N with numeric cluster assignments
i	the index (or name in C) indicating which node is to be removed or added
newC	the new assignment for node i. If NULL (default) calculates the change from removing i from its current assignment
m	the sum of all the edge weights in the network. By default the value will be calculated. It is more efficient to provide the value if looping over many nodes.
Kj	the ranks of all nodes in G. By default the value will be calculated, but it is more efficient to provide the value if looping over many nodes.

Value

If newC==NULL, the change in modularity from removing node i from its current assignment. If newC is another factor, the change in modularity by adding node i to the newC class, without calculating the change due to the removal from its current class (this is done for efficiency)

yishaishimoni/phenoClust documentation built on May 4, 2019, 5:28 p.m.