This term adds one
network statistic to the model for each element in k . The \(i\) th
such statistic counts the number of distinct k[i] -stars in the
network, where a \(k\) -star is defined to be a node \(N\) and a set of
\(k\) different nodes \(\{O_1, \dots, O_k\}\) such that the ties
\(\{N, O_i\}\) exist for \(i=1, \dots, k\) . If this is specified then the count is over
the number of \(k\) -stars where all nodes have the same value of the
attribute. This term can only be used for undirected networks; for directed
networks, see istar , ostar , twopath and m2star .
Note that kstar(1) is equal to edges .
# binary: kstar(k, attr=NULL, levels=NULL)a vector of distinct integers
a vertex attribute specification (see Specifying Vertex attributes and Levels (?nodal_attributes) for details.)
TODO (See Specifying Vertex
attributes and Levels (?nodal_attributes) for details.)
ergmTerm for index of model terms currently visible to the package.
ergm:::.formatTermKeywords("ergmTerm", "kstar", "subsection")