Plot a random.effects.lme Object
Usage
plot(object, outer, omitFixed, level, ...)
Arguments
object
|
an object inheriting from class
random.effects.lme , representing the estimated coefficients or
estimated random effects for the lme object from which it was
produced.
|
outer
|
an optional one-sided formula specifying the grouping
structure to be used for displaying the random effects
(coefficients). Single factors (~g ) or crossed factors
(~g1*g2 ) are allowed. Default is NULL , in which case
the row names of the random effects (coefficients) are used.
|
omitFixed
|
an optional logical value indicating whether
columns with values that are constant across groups should be
omitted. Default is TRUE .
|
level
|
an optional integer value giving the level of grouping
to be used for object . Only used when object is a list
with different components for each grouping level. Defaults to the
highest or innermost level of grouping.
|
...
|
optional arguments passed to the Trellis dotplot
function.
|
Description
A Trellis dot-plot of the random effects is generated, with a different
panel for each random effect (coefficient). Rows in the dot-plot are
determined by the outer
argument (if not missing) or by the row
names of the random effects (coefficients). If a single factor is
specified in outer
, its levels determine the dot-plot rows
(with possibly multiple dots per row); otherwise, if outer
specifies a crossing of factors, the dot-plot rows are determined by
all combinations of the levels of the individual factors in the
formula. The Trellis function dotplot
is used in this method
function.Value
a Trellis dot-plot of the estimated random-effects (coefficients).Note
This function requires the trellis
library.Author(s)
Jose Pinheiro and Douglas BatesSee Also
random.effects.lme
, lme
,
dotplot
Examples
library(lme)
data(Orthodont)
fm1 <- lme(distance ~ age, Orthodont, random = ~ age | Subject)
plot(ranef(fm1))
plot(ranef(fm1, aug = TRUE), outer = ~Sex)