buildgamm {buildmer} | R Documentation |
Use buildmer
to fit big generalized additive models using gamm
from package mgcv
Description
Use buildmer
to fit big generalized additive models using gamm
from package mgcv
Usage
buildgamm(
formula,
data = NULL,
family = gaussian(),
buildmerControl = buildmerControl()
)
Arguments
formula |
See the general documentation under |
data |
See the general documentation under |
family |
See the general documentation under |
buildmerControl |
Control arguments for buildmer — see the general documentation under |
Details
The fixed and random effects are to be passed as a single formula in lme4
format. This is internally split up into the appropriate fixed
and random
parts.
Only a single grouping factor is allowed. The random-effect covariance matrix is always unstructured. If you want to use pdMat
covariance structures, you must (a) not specify any lme4
random-effects term in the formula, and (b) specify your own custom random
argument in the args
list in buildmerControl
. Note that buildgamm
will merely pass this through; no term reordering or stepwise elimination is done on a user-provided random
argument.
See Also
Examples
library(buildmer)
model <- buildgamm(f1 ~ s(timepoint,by=following) + (following|participant) +
s(participant,timepoint,by=following,bs='fs'),data=vowels)