getCommunityMatrix(​cs)

call:

C = getCommunityMatrix(cs)

Given a community affiliation vector cs (obtained from some modularity or
community-detection code in the Brain Connectivity Toolbox [1], for example),
of size 1-by-N, the code returns a N-by-N matrix where pairs of nodes
belonging to the same community are given the same number. Remember that
the actual number assigned to each community is arbitrary, and that each
node (and also each pair of nodes) can be assigned to only one community,
i.e. the communities are non-overlapping. Diagonal elements are set to 0.

NOTE: in order to visualize the matrix, one may want first to convert the
zeros in NaNs, using C(C==0) = nan, and then pcolor(C)


INPUT

cs : community affiliation vector <1 x N>

OUTPUT

C : Community Matrix <N x N>



References:

[1] Brain Connectivity Toolbox: https://sites.google.com/site/bctnet/