ergmx.extb

ergmx.extb(attr, levels=None)

EXTB: a B-triangle with an X-tie at one of its vertices. For two-level (multilevel) networks, as MPNet (Wang et al. 2013): the levels are the values of the vertex attribute attr, A and B (levels=(A, B), or the attribute’s two values, sorted); A-ties are within A, B-ties within B, X-ties between them. Undirected networks.