Update a modelStruct Object
DESCRIPTION:
This method function updates each element of
object
, allowing
the access to
data
.
USAGE:
update(object, data)
REQUIRED ARGUMENTS:
- object
-
an object inheriting from class
modelStruct
,
representing a list of model components, such as
corStruct
and
varFunc
objects.
- data
-
a data frame in which to evaluate the variables needed for
updating the elements of
object
.
VALUE:
an object similar to
object
(same class, length, and names),
but with updated elements.
NOTE: This method function is primarily used within model fitting
functions, such as
lme
and
gls
, that allow model
components such as variance functions.