idegree-ergmTerm {ergm}

In-degree

Description

This term adds one network statistic to the model for each element in d ; the i th such statistic equals the number of nodes in the network of in-degree d[i] , i.e. the number of nodes with exactly d[i] in-edges. This term can only be used with directed networks; for undirected networks see degree .

Usage

# binary: idegree(d, by=NULL, homophily=FALSE, levels=NULL)

Arguments

d

a vector of distinct integers

by, levels, homophily

the optional argument by specifies a vertex attribute (see Specifying Vertex attributes and Levels (?nodal_attributes) for details). If this is specified and homophily is TRUE , then degrees are calculated using the subnetwork consisting of only edges whose endpoints have the same value of the by attribute. If by is specified and homophily is FALSE (the default), then separate degree range statistics are calculated for nodes having each separate value of the attribute. levels selects which levels of by' to include.

See Also

ergmTerm for index of model terms currently visible to the package.

Keywords

categorical nodal attribute, directed, frequently-used, binary