R: Cyclic triples

ctriple-ergmTerm {ergm} | R Documentation

## Cyclic triples

### Description

By default, this term adds one statistic to the model, equal to the number of cyclic triples in the network, defined as a set of edges of the form {(i,j), (j,k), (k,i)} .

### Usage

    # binary: ctriple(attr=NULL, diff=FALSE, levels=NULL)

    # binary: ctriad

### Arguments

`attr, diff` | quantitative attribute (see Specifying Vertex attributes and Levels (`?nodal_attributes`) for details.) If `attr` is specified and `diff` is `FALSE` , then the statistic is the number of cyclic triples where all three nodes have the same value of the attribute. If `attr` is specified and `diff` is `TRUE` , then one statistic is added to the model for each value of `attr`, equal to the number of cyclic triples where all three nodes have that value of the attribute.
`levels` | specifies the value of `attr` to consider if `attr` is passed and `diff=TRUE`. (See Specifying Vertex attributes and Levels (`?nodal_attributes`) for details.)

### Note

This term can only be used with directed networks.

for all directed networks, `triangle` is equal to `ttriple+ctriple` , so at most two of these three terms can be in a model.

### See Also

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

[Package ergm version 4.2.1 Index]