residuals 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.

influence.measures for standardized (rstandard) and studentized (rstudent) residuals.