This term adds a single network statistic for each quantitative attribute or matrix column to the model equaling the sum of
attr(i) and attr(j) for all edges \((i,j)\) in the
network. For categorical attributes, see nodefactor . Note that for
directed networks, nodecov equals nodeicov plus
nodeocov .
# binary: nodecov(attr)# binary: nodemain
# valued: nodecov(attr, form="sum")
# valued: nodemain(attr, form="sum")
a vertex attribute specification (see Specifying Vertex attributes and Levels (?nodal_attributes) for details.)
character how to aggregate tie values in a valued ERGM
ergmTerm for index of model terms currently visible to the package.
ergm:::.formatTermKeywords("ergmTerm", "nodecov", "subsection")