Effects from Fitted Model

Usage

effects(object, ...)
effects.lm(object, set.sign=FALSE)

Arguments

object list; typically, the result of a model fitting function such as lm
set.sign logical ~~Describe set.sign here~~

Description

Returns (orthogonal) effects from a fitted (generalized) regression model. In case of a full rank n * p model.matrix, the first p effects correspond to coefficients and the remaining n-p ones to residuals.

Details

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Value

A (named) numeric vector of the same length as residuals. The first p values are labeled according to the corresponding coefficients, the remaining ones are unlabeled.

The result currently has class "coef".

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See Also

coef, fitted, etc.

Examples

y <- c(1:3,7,5)
x <- c(1:3,6:7)
( ee <- effects(lm(y ~ x)) )
c(round(ee - effects(lm(y+10 ~ I(x-3.8))),3))# just the first is different


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