Initialize.corStruct {nlme} | R Documentation |
This method initializes object
by evaluating its associated
covariate(s) and grouping factor, if any is present, in data
,
calculating various dimensions and constants used by optimization
algorithms involving corStruct
objects (see the appropriate
Dim
method documentation), and assigning initial values for
the coefficients in object
, if none were present.
## S3 method for class 'corStruct': Initialize(object, data, ...)
object |
an object inheriting from class corStruct
representing a correlation structure. |
data |
a data frame in which to evaluate the variables defined in
formula(object) . |
... |
this argument is included to make this method compatible with the generic. |
an initialized object with the same class as object
representing a correlation structure.
Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu
cs1 <- corAR1(form = ~ 1 | Subject) cs1 <- Initialize(cs1, data = Orthodont)