R: k-Outstars

ostar-ergmTerm {ergm} | R Documentation

## k-Outstars

### 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]` -outstars in the network, where a k -outstar is defined to be a node N and a set of k different nodes {O[1], ..., O[k]} such that the ties (N,O_j) exist for j=1, …, k . If `attr` is specified then the count is the number of k -outstars where all nodes have the same value of the attribute. This term can only be used with directed networks; for undirected networks see `kstar` .

### Usage

    # binary: ostar(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

`ostar(1)` is equal to both `istar(1)` and `edges` .

### See Also

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

[Package ergm version 4.2.2 Index]