fixef: Extract fixed-effects estimates

In lme4: Linear Mixed-Effects Models using 'Eigen' and S4

Extract fixed-effects estimates

Description

Extract the fixed-effects estimates

Usage

  ## S3 method for class 'merMod'
 fixef(object, add.dropped=FALSE, ...)

Arguments

object	any fitted model object from which fixed effects estimates can be extracted.
add.dropped	for models with rank-deficient design matrix, reconstitute the full-length parameter vector by adding NA values in appropriate locations?
...	optional additional arguments. Currently none are used in any methods.

Details

Extract the estimates of the fixed-effects parameters from a fitted model.

Value

a named, numeric vector of fixed-effects estimates.

Examples

fixef(lmer(Reaction ~ Days + (1|Subject) + (0+Days|Subject), sleepstudy))
fm2 <- lmer(Reaction ~ Days + Days2 + (1|Subject),
            data=transform(sleepstudy,Days2=Days))
fixef(fm2,add.dropped=TRUE)
## first two parameters are the same ...
stopifnot(all.equal(fixef(fm2,add.dropped=TRUE)[1:2],
                    fixef(fm2)))

lme4 documentation built on July 3, 2024, 5:11 p.m.