R: Testing for duration dependent models

is.durational {tergm} | R Documentation

## Testing for duration dependent models

### Description

These functions test whether an ERGM is duration dependent or not.

The method for `NULL` always returns `FALSE` by convention.

### Usage

    is.durational(object, ...)

    ## S3 method for class ''NULL''
    is.durational(object, ...)

    ## S3 method for class 'ergm_model'
    is.durational(object, ...)

    ## S3 method for class 'ergm_state'
    is.durational(object, ...)

    ## S3 method for class 'formula'
    is.durational(object, response = NULL, basis = ergm.getnetwork(object), ...)

### Arguments

`object` | An ERGM formula, `ergm_model` object, or `ergm_state` object.
`...` | Unused at this time.
`response, basis` | See `ergm()`.

### Value

`TRUE` if the ERGM terms in the model are duration dependent; `FALSE` otherwise.

### Methods (by class)

- `ergm_model`: Test if the `ergm_model` has duration-dependent terms, which call for `lasttoggle` data structures.

- `ergm_state`: Test if the `ergm_state` has duration-dependent terms, which call for `lasttoggle` data structures.

[Package tergm version 4.0.2 Index]