residuals {stats} | R Documentation

## Extract Model Residuals

### Description

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

The abbreviated form `resid` is an alias for `residuals`. It is intended to encourage users to access object components through an accessor function rather than by directly referencing an object slot.

All object classes which are returned by model fitting functions should provide a `residuals` method. (Note that the method is for `residuals` and not `resid`.)

Methods can make use of `naresid` methods to compensate for the omission of missing values. The default, `nls` and `smooth.spline` methods do.

### Usage

    residuals(object, ...)
    resid(object, ...)

### Arguments

`object` | an object for which the extraction of model residuals is meaningful.
`...` | other arguments.

### Value

Residuals extracted from the object `object`.

### References

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

### See Also

`coefficients`, `fitted.values`, `glm`, `lm`.

[Package stats version 2.2.1 Index]