# terms

##### Model Terms

The function `terms`

is a generic function
which can be used to extract *terms* objects
from various kinds of R data objects.

- Keywords
- models

##### Usage

`terms(x, …)`

##### Arguments

- x
- object used to select a method to dispatch.
- …
- further arguments passed to or from other methods.

##### Details

There are methods for classes `"aovlist"`

, and `"terms"`

`"formula"`

(see `terms.formula`

):
the default method just extracts the `terms`

component of the
object, or failing that a `"terms"`

attribute (as used by
`model.frame`

). There are `print`

and `labels`

methods for
class `"terms"`

: the latter prints the term labels (see
`terms.object`

).

##### Value

An object of class `c("terms", "formula")`

which contains the
*terms* representation of a symbolic model. See
`terms.object`

for its structure.

##### References

Chambers, J. M. and Hastie, T. J. (1992)
*Statistical models.*
Chapter 2 of *Statistical Models in S*
eds J. M. Chambers and T. J. Hastie, Wadsworth & Brooks/Cole.

##### See Also

*Documentation reproduced from package stats, version 3.3.3, License: Part of R 3.3.3*