R: k-Stars for the first mode in a bipartite network

b1star-ergmTerm {ergm} | R Documentation

## k-Stars for the first mode in a bipartite network

### Description

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 whose center node is in the first mode of the network. The first mode of a bipartite network object is sometimes known as the "actor" mode. A k -star is defined to be a center node N and a set of k different nodes {O[1], ..., O[k]} such that the ties {N, O[i]} exist for i=1, …, k. If `args` is specified then the count is over the number of k-stars (with center node in the first mode) where all nodes have the same value of the attribute. This term can only be used for undirected bipartite networks.

### Usage

    # binary: b1star(k, attr=NULL, levels=NULL)

### Arguments

`k` | a vector of distinct integers
`attr` | quantitative attribute (see Specifying Vertex attributes and Levels (`?nodal_attributes`) for details.)
`levels` | TODO (See Specifying Vertex attributes and Levels (`?nodal_attributes`) for details.)

### Note

`b1star(1)` is equal to `b2star(1)` and to `edges` .

### See Also

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

[Package ergm version 4.2.2 Index]