coef {base} | R Documentation |

## Extract Model Coefficients

### Description

`coef`

is a generic function which extracts model coefficients
from objects returned by modeling functions. `coefficients`

is
an *alias* for it.

### Usage

coef(object, ...)
coefficients(object, ...)

### Arguments

`object` |
an object for which the extraction of model coefficients is
meaningful. |

`...` |
other arguments. |

### Details

All object classes which are returned by model fitting functions
should provide a `coef`

method. (Note that the method is
`coef`

and not `coefficients`

.)

### Value

Coefficients extracted from the model object `object`

.

### References

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

### See Also

`fitted.values`

and `residuals`

for related methods;
`glm`

, `lm`

for model fitting.

### Examples

x <- 1:5; coef(lm(c(1:3,7,6) ~ x))