Preserve values of dyads incident on vertices with attribute attr being TRUE or if attrname is NULL , the vertex attribute "na" being FALSE.
# egocentric(attr=NULL, direction="both")a vertex attribute specification (see Specifying Vertex attributes and Levels (?nodal_attributes) for details.)
one of "both", "out" and "in", only applies to directed networks. "out" only preserves the out-dyads of those actors and "in" preserves their in-dyads.
ergmConstraint for index of constraints and hints currently visible to the package.
ergm:::.formatTermKeywords("ergmConstraint", "egocentric", "subsection")