terms {stats} | R Documentation |

## Model Terms

### Description

The function `terms`

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

### 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

`terms.object`

, `terms.formula`

,
`lm`

, `glm`

, `formula`

.

*stats*version 4.4.1 Index]